Chennai's dedicated GST practice · GSTR-1 due 11th · GSTR-3B due 20th/22nd
Mangadu · PIN 600122

GSTR-1 & GSTR-3B Monthly Filing on Paraniputhur Road, Mangadu

One WhatsApp message is how most of our client relationships began. Send yours today and have GSTR-1 & GSTR-3B Monthly Filing in Mangadu handled end to end from Rs.749 — fee confirmed in writing first, documents straight from your phone, acknowledgement the day we file.

We serve businesses on and around Paraniputhur Road — document pickup, in-person consultation at our Porur office, or fully online over WhatsApp.

  • Handled by senior GST practitioners — 20 years in Chennai tax practice
  • Transparent fee: Rs.749/month onwards — full quote before we start
  • Same-day response on WhatsApp and phone (Mon-Sat: 9.00 AM - 8.00 PM)
  • Doorstep document pickup in Paraniputhur Road, Mangadu
Rs.749/month onwardsProfessional fee
Filed before the 11th and 20th of every monthTypical timeline
20 yearsIn indirect tax practice
30 minCallback time

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15+Years in GST & Tax Practice
1500+Chennai Businesses Served
50000+GST Returns Filed
24GST Services Handled In-House
Local Expertise

Trade Profile and GST Jurisdiction for Paraniputhur Road, Mangadu

Mangadu's economy revolves around the Kamakshi Amman temple: flower and garland sellers, pooja article shops, silk saree and jewellery showrooms and sweet stalls crowd Sannathi Street and the Mangadu-Kundrathur Road, with new apartment projects towards Paraniputhur. Traders mixing exempt fresh flowers with taxable garlands, prasadam counters and gold savings schemes must split exempt and taxable turnover correctly in GSTR-1. We have supported businesses of exactly this profile with GSTR-1 & GSTR-3B Monthly Filing across Mangadu for years, along with clients from Porur and Kundrathur. The engagement is simple: one point of contact, a clear fee, documents over WhatsApp or in person at our Chennai office, and senior review before anything is submitted on the portal. What you get in return is clean filings, archived records and far fewer reasons for the department to write to you.

GST jurisdiction for Mangadu (PIN 600122): businesses here generally fall under the CGST Chennai Outer Commissionerate. We regularly represent clients from Mangadu before this jurisdiction for registrations, clarifications and notice hearings, and can confirm your exact division and range from your GSTIN. State-jurisdiction cases are handled with the Tamil Nadu Commercial Taxes Department.
GST Services for Jewellers in Mangadu
Jewellery sits in a rate structure of its own: 3 percent on gold and silver ornaments, 5 percent on making charges when billed separately, and 0.25 percent on rough precious stones. Buying old gold from an unregistered individual attracts no reverse charge, and if exchanged ornaments are resold as they are, the margin scheme under Rule 32(5) can limit tax to the dealer's margin. Chapter 71 goods are exempt from e-way bills, yet delivery challans for karigar job work and HUID-linked stock registers remain essential during inspections. A specialist keeps making-charge invoicing, old-gold purchase records and job work documentation aligned so high-value scrutiny passes cleanly.
The simplest way to complete GSTR-1 & GSTR-3B Monthly Filing in Mangadu is through a local GST practice: one call starts the process, documents move over WhatsApp, and fees begin at Rs.749.
Why Us

Why Paraniputhur Road, Mangadu Businesses Choose ChennaiGST

Not a bulk-filing portal. A senior consultant knows your file, your jurisdiction and your deadlines.

Extra Hands During Filing Windows

In the days before the 11th and the 20th, our team runs extended hours and a strict internal queue, so a client who sends data late in the window is still filed on time. Peak-season crush at our end never becomes a late fee at yours.

WhatsApp Updates at Every Stage

You receive a WhatsApp message when documents are received, when the draft is ready for your approval, and when the return or application is filed, along with the acknowledgement. You never have to call and ask what is happening with your file.

Support in Tamil and English

GST is confusing enough without a language barrier. Our team explains notices, tax positions and filing requirements in plain Tamil or English, whichever you and your staff in Mangadu are comfortable with, and keeps written communication simple and jargon-free.

E-Commerce Seller Reconciliation, Including TCS

Sellers on Amazon, Flipkart and other marketplaces face a three-way match between marketplace reports, GSTR-1 and the TCS the operator deposits against your GSTIN. We reconcile all three every period and accept the TCS credit, so sellers in Mangadu never leave marketplace deductions unclaimed.

Support Through Audits and Hearings

When an ADT-01 audit intimation or a personal hearing date arrives, we compile the records, prepare the reconciliations and draft the submissions, and coordinate closely with your authorised representative. You walk into the proceeding prepared, not improvising in front of an officer.

Strict Data Confidentiality

Your sales figures, supplier lists and login credentials are handled only by our engaged team, stored securely and never shared with any third party. Many of our clients in Mangadu compete with each other; complete confidentiality is a condition of our work.

How It Works

Our Monthly Returns Process

Monthly data collection

At month end we remind you and collect sales invoices, purchase bills and credit notes in whatever format you maintain, including Excel, Tally exports or scanned copies.

GSTR-1 preparation and filing

We prepare invoice-wise outward supply details, validate GSTINs of your B2B customers, summarise B2C supplies and file GSTR-1 on the portal before the 11th.

ITC reconciliation with GSTR-2B

We download your auto-drafted GSTR-2B, match it against purchase records, and claim only eligible input tax credit so that mismatches do not trigger scrutiny notices later.

Tax computation and confirmation

We compute net tax payable after ITC set-off, share the working with you for approval, and generate the payment challan for any cash liability.

GSTR-3B filing and reporting

After your confirmation and tax payment, we file GSTR-3B before the 20th and send you both filed acknowledgements along with a one-page summary of the month.

Checklist

Documents Required for GSTR-1 & GSTR-3B Monthly Filing

Send these on WhatsApp (+91 - 9600 606 444) and we take it forward the same day.

Transparent Pricing

What GSTR-1 & GSTR-3B Monthly Filing Costs in Mangadu

Rs.749/month onwards

Timeline: Filed before the 11th and 20th of every month · No hidden charges · GST invoice provided

Rs.7,999/year

  • Invoice-level GSTR-1 preparation and filing by the 11th
  • GSTR-2B download and input tax credit reconciliation
  • GSTR-3B computation and filing by the 20th
  • Reverse charge liability identification and reporting
  • Challan preparation for tax payment
  • Filed return acknowledgements and monthly tax summary

Call +91 - 9600 606 444

Outcomes

What You Get

Practical outcomes our clients measure us by.

Reduced Dependence on One Employee

When GST knowledge lives inside a single staff member, their resignation becomes a compliance crisis. With our firm as the standing process, your filings continue uninterrupted regardless of internal staff changes.

Tax Paid Under the Right Head

Getting IGST versus CGST and SGST right at the invoice stage spares you the painful cycle of paying the correct head again and pursuing a refund of the amount paid under the wrong one.

Confidence During Officer Interactions

When a query or verification comes, you respond through a professional who deals with the department regularly, in the department's own language and format, instead of facing an officer's letter alone.

Marketplace Accounts That Stay Live

E-commerce platforms continuously validate seller GSTINs and filing status. A consistently compliant registration keeps your listings active and settlements flowing, with no sudden suspension of your online sales channel.

Fewer Errors at the Billing Counter

Your billing staff are guided on invoice fields, rates and series discipline, so mistakes are prevented where they originate — at the counter — instead of being repaired later in the returns.

Every Eligible Rupee of ITC Claimed

Systematic GSTR-2B matching and supplier follow-up mean input tax credit that was leaking away under self-filing is captured each month, directly reducing the cash you pay out with every GSTR-3B.

Why a Specialist Matters

With ChennaiGST vs Doing It Yourself

AspectWith ChennaiGSTDIY / Unattended
Registration and amendmentsQuery-resistant applications prepared correctly the first time, with supporting documents matched to what proper officers actually verify.Repeated clarification memos and resubmissions, with weeks lost because a rent agreement or premises photograph did not meet expectations.
Annual return preparationMonthly reconciliations roll naturally into GSTR-9, filed comfortably before 31 December with figures already agreed through the year.Twelve months of unmatched data reconstructed in December, with differences discovered too late to be corrected cleanly.
Late fees and interestFilings go in ahead of statutory dates, so the Rs.50-per-day late fee and 18 percent interest never arise.Late fees accumulate silently every delayed day, and interest on unpaid tax runs at 18 percent per annum.
When a notice arrivesA professional drafts the reply in the department's format and files it within the statutory window, such as thirty days for ASMT-11.You face departmental language alone, and a missed reply deadline can convert a simple query into a demand with penalty.
Goods in transitE-way bills generated correctly and matched to invoices, so consignments pass roadside inspections without detention or penalty.A defective or missing e-way bill can mean detention at a checkpoint, with penalties that dwarf the tax on the consignment.
Record keepingEvery return, challan, acknowledgement and working paper archived in an organised folder, retrievable in minutes years later.Documents scattered across email, downloads and old phones; assembling records for a bank or an audit takes days.
Compliance Watch

GST Developments Worth Knowing — relevant to Mangadu businesses

A working knowledge of recent instruments and judgments is what separates a defensible filing from a risky one.

Case Law

Supreme Court bars customs recovery action during an insolvency moratorium

Sundaresh Bhatt, Liquidator of ABG Shipyard v. Central Board of Indirect Taxes and Customs — Supreme Court, (2023) 1 SCC 472, judgment dated 26-08-2022 · 2022-08-26

The Supreme Court held that once a moratorium is declared under the Insolvency and Bankruptcy Code, the customs authorities can only assess and quantify their dues; they cannot initiate recovery, sell goods or enforce any lien over the debtor's assets. The Code prevails over the Customs Act to this extent. The authorities must submit their claim to the resolution professional or liquidator like any other creditor.

Why this matters: If a Chennai company is under moratorium, indirect tax officers may quantify dues but cannot attach property or auction goods to recover them.

AAR Ruling

Ready to cook idli, dosa and porridge mixes taxable at 18 percent

Krishna Bhavan Foods and Sweets - AAR Tamil Nadu, Order No. TN/24/AAR/2021, dated 18 June 2021, upheld by AAAR Tamil Nadu, Order No. TN/AAAR/02/2022, dated 13 January 2022 · 2021-06-18

The applicant sold packaged ready to cook instant mixes for dosai, idli, tiffin items, sweets, health mix and porridge. It argued that these were only flours of cereals and pulses taxable at 5 percent. The Authority classified the products under heading 2106 90 as food preparations not elsewhere specified, attracting 18 percent GST, because the mixing and added ingredients took them out of the concessional flour entries. The Appellate Authority upheld that classification.

What it means for you: Chennai food manufacturers selling instant mixes should confirm whether the product is a plain flour or a preparation before applying 5 percent.

GST Council

One-time option for ongoing projects to stay at 8 or 12 per cent with input credit

34th GST Council Meeting (video conferencing) — 19 March 2019 · 2019-03-19

The Council gave promoters a one-time option to continue paying tax at the old effective rates of eight or twelve per cent with input tax credit on ongoing projects, meaning buildings where both construction and actual booking had started before 1 April 2019 and which were not completed by 31 March 2019. The option had to be exercised once within a prescribed time frame, failing which the new rates applied automatically. Credit for projects moving across was to be transitioned pro rata.

Practical effect: Chennai builders who did not formally exercise the option in 2019 are on the one and five per cent no-credit rates, and any credit claimed since then is exposed to reversal.

References are provided for general information. Verify the current position on gst.gov.in or cbic.gov.in before acting.

FAQs

Frequently Asked Questions

Straight answers from practising GST consultants — based on the CGST Act, current CBIC notifications and day-to-day portal experience.

Are there any hidden charges for GSTR-1 & GSTR-3B monthly filing?
No. The fee quoted before we start is the fee you pay. Government fees, portal charges or statutory late fees, where they apply, are separate and disclosed to you in advance with the exact amount. We issue a proper GST invoice for our professional fee. If the scope of work changes — for example, an unexpected notice or additional periods — we tell you the revised fee before doing anything further.
Can I get GSTR-1 & GSTR-3B monthly filing done online without visiting the office?
Yes, the entire process can be handled online. You share scanned documents on WhatsApp or email, we prepare and file everything on the GST portal, and you receive the acknowledgement and filed copies digitally. Businesses in Mangadu regularly complete monthly returns with us without a single office visit. If a physical verification or personal hearing is required by the department, we guide you through it.
I generate e-invoices. Do I still have to prepare GSTR-1 separately?
If your aggregate turnover exceeds Rs.5 crore, e-invoicing is mandatory and the invoice details reported to the Invoice Registration Portal auto-populate into your GSTR-1. However, auto-population is not a substitute for review. B2C sales, exports without IRN issues, credit notes, amendments and advances still need to be verified or added manually before submission. We review the auto-drafted GSTR-1 against your books each month so that what is filed matches your accounts exactly. If you have just crossed the Rs.5 crore threshold, call +91 - 9600 606 444 and we will set up e-invoicing correctly.
What is the difference between GSTR-1 and GSTR-3B?
GSTR-1 is a detailed invoice-wise statement of your sales, filed by the 11th of the next month. It does not involve any tax payment but it feeds your customers' GSTR-2B for input tax credit. GSTR-3B is a self-declared summary return, due on the 20th, where you report total sales, claim input tax credit and pay the net tax in cash or through credit. Both must match; mismatches between GSTR-1 and GSTR-3B are a common trigger for notices from the department, which is why we reconcile them before every filing.
When is GSTR-1 due for my business in Mangadu?
GSTR-1, the statement of outward supplies, is due on the 11th of the following month for taxpayers filing monthly. If you have opted for the QRMP scheme, the quarterly GSTR-1 is due on the 13th of the month after the quarter ends. Filing on time matters because your invoices flow into your buyers' GSTR-2B, which decides their input tax credit. Our team in Mangadu tracks these dates for every client so nothing slips. Call +91 - 9600 606 444 if you need a filing reminder set up.
What is the difference between CPIN and CIN, and how long is a GST challan valid?
When you generate a challan in Form PMT-06 on the portal, the system issues a fourteen-digit Common Portal Identification Number, the CPIN, which identifies the unpaid challan and remains valid for fifteen days. Once the bank receives your payment, a seventeen-digit Challan Identification Number, the CIN, is generated, comprising the CPIN plus the bank code, and the amount credits your electronic cash ledger. If a challan expires unpaid, simply generate a fresh one; no consequence follows. Payment modes include net banking, UPI, cards, NEFT or RTGS, and over-the-counter deposit up to Rs.10,000 per challan per tax period.
What happens if I miss filing GSTR-3B this month?
A late fee of Rs.50 per day (Rs.20 per day for a nil return) accrues automatically, capped based on your turnover, and interest at 18 percent per annum applies on tax paid late. You also cannot file the next period's GSTR-1 until the pending GSTR-3B is filed, since returns must be filed sequentially. If two consecutive tax periods remain unfiled, e-way bill generation gets blocked, and continued default can lead to suspension of your GSTIN. File the pending return at the earliest; call +91 - 9600 606 444 and we can clear the backlog quickly.
How should I raise invoices on foreign clients and report them in my returns?
You may invoice in foreign currency, but your GST records must state the value in rupees. An export invoice under LUT should carry the endorsement that the supply is meant for export under Letter of Undertaking without payment of integrated tax, along with your GSTIN, SAC code and the recipient's overseas address. In GSTR-1, these invoices go into Table 6A marked without payment of tax, and the turnover flows into GSTR-3B as zero-rated supplies. Match every invoice to a FIRC or bank credit. Our filing package for exporters in Mangadu includes this export documentation at Rs.749 per month.
What counts as exempt supply when calculating my ITC reversal ratio?
Exempt supplies for Rules 42 and 43 include nil-rated and wholly exempted supplies, and by virtue of Section 17(3) also cover outward supplies on which your recipient pays tax under reverse charge, transactions in securities valued at one percent of sale value, and sale of land or completed buildings valued at stamp duty value. Importantly, interest earned on deposits, loans or advances is excluded from the exempt turnover for this computation for everyone except banking companies and financial institutions. Many businesses in Mangadu inflate their reversal by wrongly including fixed deposit interest, handing over credit the law never asked them to reverse.
I make both taxable and exempt supplies. How is the Rule 42 credit reversal actually computed?
Rule 42 first removes credit exclusively for exempt supplies and non-business use, and credit exclusively for taxable supplies, leaving the common credit. From this common pool, you reverse the portion equal to exempt turnover divided by total turnover for the month, plus a flat five percent of the common credit where inputs are partly used for non-business purposes. The reversal is declared monthly in GSTR-3B, and a final recomputation for the whole year must be done, with any shortfall paid with interest, by the November return following the financial year. Traders in Mangadu dealing in items like unbranded foods alongside taxable goods need this working every month.
Can nil GSTR-1 also be filed through SMS?
Yes. Send NIL space R1 space your GSTIN space tax period in MMYYYY format (use the quarter-ending month for quarterly filers) to 14409 from the registered mobile number of the authorised signatory. Confirm with the CNF code received, and the portal issues an ARN. A nil GSTR-1 is possible only when there are no outward supplies at all, including no credit notes, amendments or documents to report for that period. Many of our clients in Mangadu with seasonal businesses use this facility during off months, with our team verifying the status afterwards.
I deposited money under the wrong head in my GST cash ledger. Why can the amount not be used?
The cash ledger is divided into major heads, IGST, CGST, SGST and cess, and minor heads, tax, interest, penalty, fee and others. An amount deposited under one combination, say CGST-penalty, cannot be directly used to pay under another, say IGST-tax, which is why your balance appears unusable despite money lying in the ledger. The remedy is Form PMT-09, which transfers the amount to the correct head instantly without any officer approval. Many Mangadu taxpayers wrongly deposit a fresh challan in this situation; a two-minute PMT-09 filing saves that duplication. Call +91 - 9600 606 444 if your ledger looks stuck.
Who must sign GST filings with a DSC, and who can use EVC?
Companies and limited liability partnerships must authenticate registration applications and returns with a Digital Signature Certificate of the authorised signatory; the Electronic Verification Code route is not ordinarily available to them, though the government has periodically allowed EVC for companies during specified relaxation windows. Proprietorships, partnerships, HUFs and trusts can freely use EVC, an OTP sent to the authorised signatory's registered mobile and email. The DSC must be a Class 3 signature registered on the portal against the signatory's PAN. If a company's filings fail at the signing step, an expired or unregistered DSC is the usual culprit.
What happened to the old 12 percent and 28 percent GST slabs?
Both slabs were abolished with effect from 22 September 2025. Nearly all goods that were at 12 percent moved down to 5 percent, and the bulk of the 28 percent items moved to 18 percent, with only a small set of luxury and demerit goods shifted up to the special 40 percent rate. This means old rate charts, printed price lists and software masters created before September 2025 are unreliable. Before quoting or billing, confirm the current rate against the CBIC rate notifications for your exact HSN code, or call +91 - 9600 606 444 and we will verify it for your product list.
Is GST charged before or after the discount shown on my invoice?
Discounts given before or at the time of supply and recorded on the face of the invoice are excluded from the value of supply under Section 15(3)(a). You therefore charge GST on the net amount after discount. For example, a Rs.10,000 item with a 10 percent trade discount shown on the invoice is taxed on Rs.9,000. The condition is documentation: the discount must appear on the invoice itself. Informal reductions settled outside the bill do not reduce taxable value. Retail schemes such as festival discounts and trade margins should always be structured to print on the invoice.
Which purchases commonly attract GST under reverse charge for a regular business?
Under Section 9(3), the recipient pays tax on notified supplies. The entries a typical business in Mangadu encounters are: goods transport agency services, services of advocates and arbitral tribunals, sponsorship provided to companies and partnership firms, services of directors, security services from non-corporate providers, renting of passenger motor vehicles from non-corporate operators charging five percent, import of services, and renting of property from unregistered landlords in notified cases. Each month, scan your expense ledger for these heads, pay the tax in cash through GSTR-3B, and claim it back as ITC where eligible. Missed RCM is among the top audit findings; call +91 - 9600 606 444 for an RCM exposure review.
Which daily-use grocery items became cheaper under GST from September 2025?
The 56th GST Council's rationalisation, effective 22 September 2025, moved a large basket of daily essentials from 12% or 18% down to 5%, including butter, ghee, cheese, namkeens, sauces, pasta, chocolates, biscuits, cornflakes, hair oil, shampoo, soaps and toothpaste. UHT milk, pre-packaged paneer and all Indian breads such as roti, chapati and paratha became nil rated. Aerated and caffeinated beverages, by contrast, went to the 40% demerit rate. Grocery and supermarket billing masters needed a near-complete refresh from that date, and old stock is simply sold at the new rate applicable on the date of supply.
I buy electronics stock from distributors in other states. How does the IGST on purchases work for me?
Inter-state purchases carry IGST, which flows into your GSTR-2B once the distributor files GSTR-1, and it is fully available as input tax credit. When you sell locally in Tamil Nadu you charge CGST and SGST, and the law lets you use IGST credit against both, with the portal applying the set-off order automatically. There is no cost disadvantage in buying from out-of-state distributors, provided they are compliant filers; a distributor who files late delays your credit by a month. Track supplier filing discipline as part of vendor selection. Retailers in Mangadu can call +91 - 9600 606 444 for a supplier compliance scorecard.
Is there a GST consultant near Mangadu for gst return filing?
Yes. We serve Mangadu and the surrounding areas from our office at Porur, Chennai - 600 116, Tamil Nadu, and most monthly returns work is completed online — you send documents on WhatsApp and we handle the portal work. If you prefer in-person help, we offer doorstep document pickup across Mangadu and you are welcome to visit our office. Reach us on +91 - 9600 606 444 between 9 AM and 8 PM, Monday to Saturday.
How much does GSTR-1 & GSTR-3B monthly filing cost in Mangadu?
Our fee for GSTR-1 & GSTR-3B monthly filing in Mangadu starts at Rs.749/month and is quoted in full before we begin — there are no hidden charges added later. The fee covers professional work end to end: document review, preparation, filing and follow-up until completion. Government fees or portal charges, where applicable, are separate and always shown to you upfront. For an exact quote based on your turnover and business type, call +91 - 9600 606 444 and a consultant will confirm it on the call.
What documents are required for GSTR-1 & GSTR-3B monthly filing in Mangadu?
For GSTR-1 & GSTR-3B monthly filing you will generally need: Sales invoices or sales register for the month, Purchase invoices or purchase register, Credit notes and debit notes issued during the month, GST portal login credentials, Bank statement for the period, if reconciliation is needed. The exact list depends on your constitution — proprietorship, partnership, LLP or company — and on the specifics of your case. Send what you have on WhatsApp to +91 - 9600 606 444 and we will confirm within the same working day exactly what else is needed, so nothing is rejected later for a missing paper.
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