NITIVAR TDS keeps the register current all quarter: deduction events land as they happen — salary TDS from payroll, non-salary TDS from vendor payments — each under its deductor, each against a deductee whose PAN status is already known.
Deposits log as challans with BSR codes and references, matched to the deductions they cover. When the quarter closes, the return is a source-readiness check on data that already exists — 24Q, 26Q, 27Q, or 27EQ — not a hunt through payment records.
Certificates close the loop: Form 16 and Form 16A status is tracked through generation and issue, and TRACES-side corrections stay tied to the returns they amend. For CA firms, every client TAN runs the same way, with deadlines on the Practice compliance calendar.