The 11th and the 20th arrive every month whether you are ready or not. Our Chennai team keeps businesses in Nanmangalam permanently ahead of both, delivering GSTR-1 & GSTR-3B Monthly Filing from Rs.749 with reconciliation, senior review and WhatsApp acknowledgements as standard.
We serve businesses on and around Medavakkam Koot Road — document pickup, in-person consultation at our Porur office, or fully online over WhatsApp.
Share your number — a senior GST consultant calls you back within 30 minutes.
Businesses in Nanmangalam looking for GSTR-1 & GSTR-3B Monthly Filing want two things: work done correctly and someone answerable when questions come. Nanmangalam, ringed by the Nanmangalam Reserve Forest and its worked-out quarries, hosts blue-metal crushers, M-sand and ready-mix depots, lorry fleets and building-material yards along Dr. Ambedkar Main Road, Vadakkupattu Road and S.I.V.E.T. College Road towards Medavakkam Koot Road. Reverse charge on mining royalty and seigniorage, and e-way bills for short-haul aggregate lorries, are the recurring disputes here. We serve this belt — including Kovilambakkam and Medavakkam — with fixed fees quoted upfront, a written document checklist, and filings completed ahead of statutory due dates. Every acknowledgement is shared the day it is generated, and our support continues if the department raises any query on work we have filed.
Not a bulk-filing portal. A senior consultant knows your file, your jurisdiction and your deadlines.
OTP failures, DSC errors, stuck submissions on due-date evenings — we deal with the GST portal daily and know the workarounds. When the site misbehaves on the 20th, our team keeps retrying and escalating so your return still goes through.
We tell you when the composition scheme stops making sense, when QRMP suits your cash flow, and when a supplier's non-compliance is quietly costing you credit. Filing is the minimum; helping you make better GST decisions is the actual job.
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.
If a query, ASMT-10 scrutiny notice or DRC-01 arrives on a return we filed, we stand behind our work and help you draft the reply. You are not left alone with a departmental letter and a thirty-day clock ticking against you.
You deal with one accountable person who knows your business, your turnover pattern and your filing history. No repeating your story to a new voice every month, and no file falling between two desks when a deadline is approaching.
Every new client receives a review of their recent returns before we file anything — unclaimed credit, GSTR-1 versus GSTR-3B drift, and exposures worth correcting quietly. Businesses in Nanmangalam often discover in this first review exactly why their previous arrangement was costing them money.
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.
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.
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.
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.
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.
Send these on WhatsApp (+91 - 9600 606 444) and we take it forward the same day.
Timeline: Filed before the 11th and 20th of every month · No hidden charges · GST invoice provided
Rs.7,999/year
Practical outcomes our clients measure us by.
You know your expected GST outflow days before the 20th, not on the night of filing. That advance visibility lets you plan payments, collections and bank balances instead of scrambling for funds at the deadline.
Loan applications and government tenders routinely demand GST returns and registration documents. With everything filed and archived properly, you can produce a complete compliance file within hours instead of days.
With returns filed ahead of the statutory due dates every period, the Rs.50-per-day GSTR-3B late fee simply stops appearing in your life, and the money stays in your business where it belongs.
Late-fee waivers and amnesty windows notified by the GST Council are applied to your history within their deadlines, capturing reliefs that most businesses only hear about once the window has already closed.
New branches, new product lines and interstate sales all carry GST consequences. With standing professional support, you expand knowing registrations, invoicing and returns will keep pace with the business.
The 11th and the 20th stop being days of dread. You approve a prepared draft, we file, and the acknowledgement lands on your WhatsApp — month after month, without drama.
| Aspect | With ChennaiGST | DIY / Unattended |
|---|---|---|
| Risk of notices | GSTR-1, GSTR-3B and GSTR-2B reconciled before filing, removing the mismatches that trigger most scrutiny notices. | Inconsistent figures across returns quietly build a mismatch history that surfaces later as ASMT-10 scrutiny or a demand notice. |
| Record keeping | Every 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. |
| Refund claims | RFD-01 filed with complete statements and annexures, tracked from ARN to bank credit, with any deficiency memo answered promptly. | Incomplete claims bounce back as deficiency memos while the refund sits unclaimed for months and working capital stays blocked. |
| Supplier defaults | Suppliers who stop uploading invoices are identified within the period and pursued before their default becomes your blocked credit. | Missing supplier invoices surface only when credit is denied, by which time recovering the amount from the vendor is difficult. |
| Late fees and interest | Filings 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. |
| Keeping up with changes | Rate changes, portal updates and new thresholds such as the Rs.5 crore e-invoice limit are tracked by us and applied to your case proactively. | Changes are discovered after the fact — often through a rejected filing, a blocked e-way bill or a departmental letter. |
Medavakkam Koot Road is a primary arterial road in Nanmangalam, about 1.5 km south-east of the centre of Nanmangalam. The same consultant covers the streets immediately around it — Bell Nagar 3rd Main Road (about 200 m); Pillaiyar Kovil Street (about 1.0 km); Vadakkupattu Road (about 1.1 km); Ponniamman Kaladi Main Road (about 1.2 km) — so a site visit on Medavakkam Koot Road can usually be combined with other work in Nanmangalam on the same trip. For GST purposes an address on Medavakkam Koot Road falls under the Chennai South CGST Commissionerate, and the Nanmangalam pincode is 600129.
Road classification and position from OpenStreetMap; distances are straight-line and approximate. Jurisdiction must be confirmed on your own registration certificate.
Selected notifications, Council decisions and court rulings that practising consultants are applying to live cases.
Circular No. 99/18/2019-GST dated 23 April 2019 · 2019-04-23
Following Removal of Difficulty Order No. 05/2019-Central Tax, CBIC clarified that a person whose registration was cancelled on or before 31 March 2019 for non-filing of returns could apply for revocation up to 22 July 2019. Where cancellation took effect from the order date, all returns up to that date had to be filed first. Where it was cancelled retrospectively, returns for the whole period from the effective date of cancellation had to be furnished within thirty days of the revocation order.
Practical effect: This was the first revocation amnesty and set the pattern of every later one, so a Chennai business with a dormant cancelled GSTIN should watch for such windows.
GSTN Advisory, April 2024 — reset and re-filing of Form GSTR-3B for certain identified taxpayers · 2024-04
GSTN found that in a small number of cases credit or liability figures had been wrongly auto-populated into GSTR-3B. The affected returns were reset and made available for filing afresh. Only the taxpayers identified by the system saw the option on their dashboard and they were given a short window to verify the figures and file again. No general facility to revise a filed GSTR-3B was created.
Why this matters: A filed GSTR-3B still cannot be revised as a rule, so verify the auto-populated figures carefully before you submit the return.
Notification No. 03/2022-Central Tax (Rate) dated 13.07.2022 · 2022-07-13
Giving effect to the 47th GST Council's rate rationalisation, this notification raised the rate on works contract services supplied to the Central Government, State Government, Union territory and local authorities from 12 per cent to 18 per cent with input tax credit, applying from 18 July 2022. Several High Courts, including the Madras High Court, have since heard petitions by contractors seeking reimbursement of the differential tax from the awarding department on contracts priced before the change.
What it means for you: Chennai civil contractors with pre-July 2022 government tenders should pursue a differential-tax claim with the department rather than absorbing the 6 per cent increase.
References are provided for general information. Verify the current position on gst.gov.in or cbic.gov.in before acting.
Straight answers from practising GST consultants — based on the CGST Act, current CBIC notifications and day-to-day portal experience.
Mon-Sat: 9.00 AM - 8.00 PM · Sunday: WhatsApp support only