I am an Amazon and Flipkart seller (Regular GST registration).

I am filing my Income Tax Return for FY 2025–26, but I found a major mismatch:

* Business Receipts (TIS/AIS): ₹56,26,248
* GST Turnover (TIS/AIS): ₹33,88,927
* Difference: ₹22,37,321

While checking my GST records, I noticed that June, July and August 2025 appear to have NIL/₹0 outward taxable supplies in both GSTR-1 and GSTR-3B, even though I had actual sales during those months.

From my marketplace reports:

* Amazon + Flipkart sales during June–August were approximately ₹13 lakh.

Even after considering these three months, there is still around ₹9 lakh of unexplained difference between Business Receipts and GST Turnover.