Get GSTR-1 & GSTR-3B Monthly Filing done right in Kolathur without portal struggles or missed deadlines. Our Chennai-based consultants manage the entire process from Rs.749, with same-day responses and every submission checked by a senior practitioner before it is filed.
We serve businesses on and around Anjugam Nagar Main 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.
Kolathur is India's best-known ornamental fish hub, with breeding farms and aquarium shops clustered off Red Hills Road near Retteri junction, alongside hardware stores and construction material suppliers serving fast-growing residential pockets like Poombuhar Nagar. Many fish breeders and online sellers cross the Rs.40 lakh goods threshold without realising it, making first-time registration and e-commerce reporting the local GST pain point. GST compliance in a market like Kolathur rewards consistency — returns that match, credits that reconcile, and records that stand up to scrutiny. Our team provides GSTR-1 & GSTR-3B Monthly Filing to businesses throughout Kolathur and nearby Villivakkam and Perambur on fixed, transparent fees. From the first document checklist to the final acknowledgement on WhatsApp, the process is structured so nothing depends on memory, luck or a due-date-evening scramble.
Not a bulk-filing portal. A senior consultant knows your file, your jurisdiction and your deadlines.
New GSTIN applications, core field amendments through REG-14, additional places of business — we prepare complete, query-resistant applications the first time. Clean paperwork is the difference between smooth approval and weeks lost answering clarification memos from the department.
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 Kolathur compete with each other; complete confidentiality is a condition of our work.
If your GSTR-1 and GSTR-3B start drifting apart, if a large supplier stops filing, or if your turnover approaches the e-invoice threshold, we flag it to you immediately. Early warnings from our side are cheaper than departmental letters later.
From filing the LUT in RFD-11 at the start of each financial year to preparing RFD-01 refund claims with complete annexures, we know what makes a refund file move. Exporters and inverted-duty businesses come to us specifically for this.
Businesses with registrations in more than one State, or multiple branches under one PAN, face cross-charge, stock transfer and input service distribution questions that single-GSTIN firms never see. We keep all your registrations consistent with each other, not just compliant individually.
E-invoicing is mandatory once turnover crosses Rs.5 crore and e-way bills apply to goods movements above Rs.50,000. We set up, train and troubleshoot both systems, so your despatches from Kolathur are never held up by a compliance gap at the gate.
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.
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.
Whether moving between composition and regular scheme, opting into QRMP, or crossing the e-invoice threshold at Rs.5 crore, transitions are planned in advance rather than discovered after a compliance breach.
Illness, travel or a family function no longer threatens a deadline. With a standing external process holding your calendar and data trail, filings proceed on schedule whether or not you are at your desk.
Sales returns, discounts and price revisions are adjusted through properly reported credit notes within the statutory window, so you never keep paying tax on turnover you have already reversed.
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.
Funding rounds, partnerships and business sales all begin with a compliance check. A clean, documented GST history lets you clear that scrutiny quickly instead of watching a deal stall over old filing gaps.
| Aspect | With ChennaiGST | DIY / Unattended |
|---|---|---|
| Portal credentials and data | Logins handled by a small engaged team under strict confidentiality, with credentials stored securely and never passed onward. | Passwords circulating on chats with freelancers and part-timers, and no accountability for who has accessed your business data. |
| Time cost | Roughly an hour a month to send data and approve drafts; the portal work, reconciliation and follow-up are ours. | Hours every month lost to portal errors, JSON files, OTP failures and reworking figures — usually on the due date itself. |
| Due-date tracking | A maintained compliance calendar with internal cut-offs days before the 11th and the 20th; we chase you for data, not the other way around. | Deadlines remembered from memory or phone alarms; one busy week and the return slips past the due date. |
| 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. |
| Input tax credit | Purchase register matched against GSTR-2B each period, with defaulting suppliers chased so eligible credit is actually captured. | Credit claimed from books alone; mismatches with GSTR-2B mean lost credit or excess claims that invite departmental queries. |
| 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. |
Selected notifications, Council decisions and court rulings that practising consultants are applying to live cases.
Notification No. 24/2018-Central Tax (Rate), dated 31 December 2018 · 2018-12-31
Solar and other renewable energy projects are usually supplied as a single turnkey contract covering panels, structures, cabling, erection and commissioning, which led to endless disputes on whether the concessional goods rate or the higher works contract rate applied. From 1 January 2019 the law deemed seventy per cent of the gross consideration to be the value of goods, taxed at the concessional renewable energy rate, and thirty per cent to be the value of the taxable service. The same deeming continues in the current goods rate notification.
Practical effect: EPC contractors for rooftop solar in Chennai should split each invoice 70:30 as prescribed rather than inventing their own allocation between goods and installation.
GSTN Advisory dated 24 September 2024 — archival of GST returns data older than seven years · 2024-09-24
GSTN advised that return data on the common portal is retained for seven years only, after which it is archived and no longer available for viewing or download. Archival started with the earliest tax periods of 2017-18 and proceeds month by month, so one further month of data drops off the portal every month. Taxpayers were advised to download and preserve their returns and supporting data before the archival date for each period.
How we apply it: Download and store PDF and JSON copies of every GSTR-1, GSTR-3B and GSTR-9 filed since 2017, because archived returns cannot be retrieved from the portal during an audit or appeal.
12th GST Council Meeting, New Delhi — 16 March 2017 (Signed Minutes, Agenda Items 2, 3 and 4) · 2017-03-16
The Council approved the draft SGST law and the draft UTGST law, completing the legislative package begun at the previous meeting, and also approved amendments to the GST (Compensation to States) Bill including the ceiling rates at which compensation cess could be imposed. Placing the cess ceilings in the statute meant that later cess increases, such as the one on cigarettes a few months afterwards, could be made by notification without returning to Parliament.
Practical effect: Tamil Nadu's own SGST Act follows the template approved here, which is why the State and Central provisions a Chennai business faces are near-identical.
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