Generic CAs file ITR-1.
You should be on ITR-3. A defective-return notice under 139(9) — if not cured in 15 days — triggers Section 234F late-filing fee (₹1K if income ≤₹5L, ₹5K above), 234A interest at 1%/mo from the due date, and 270A penalty if mis-reporting is established. We've seen the same mistake on ₹35L creators four years running.