The law
Income-tax Act 2025, Sec 397(3)(f)
Correction statement allowed to fix discrepancies or update information within two years from the end of the tax year in which the statement was dueSource
Income-tax Act 2025, Sec 399 (processing, corresponds to old Sec 200A)
Statements and corrections are processed for arithmetic errors, apparent incorrect claims, interest and fee; intimation within one year from the end of the tax year of filingSource
Income-tax Act 2025, Sec 398 (old Sec 201)
Assessee in default; interest 1% and 1.5% a month; no default if payee filed return, included income and paid tax, with an accountant's certificate; order limits six years or two years from correctionSource
Income-tax Act 2025, Sec 427 (old Sec 234E)
Late filing fee ₹200 a day capped at tax deductibleSource
Income-tax Act 2025, Sec 461 (old Sec 271H)
Penalty for incorrect information in a statement: ₹10,000 to ₹1,00,000Source
Government fee
No fee for filing a correction. Any short payment, interest or late fee shown in the intimation is paid by challan (https://newblog.tdsman.com/?p=5030).
Late fee or penalty
Late fee under Sec 427 at ₹200 a day for the original statement if it was late (https://www.incometaxindia.gov.in/w/section-427-5). Interest under Sec 398(3) on short or late payment (https://www.incometaxindia.gov.in/w/section-398-5).