The law
Income-tax Act 2025, Sec 395(1) and 395(3) (old Sec 197 and 206C(9))
Certificate for lower or nil TDS, and lower TCS, on applicationSource
Income-tax Rules 2026, Rule 213 (old Rules 28, 28AA, 28AB, 29, 37G, 37H)
Application in Form 128 filed electronically; AO considers estimated tax, past four years' tax, existing liabilities and tax already paid or deductedSource
Income-tax Act 2025, Sec 397(2)
PAN must be furnished; Form 128 cannot be filed without itSource
Government fee
No government fee mentioned in the official Form 128 FAQs (https://www.incometaxindia.gov.in/documents/d/guest/form-128-faqs).