Tax deduction at source on interest: proviso clause exempting dematerialised listed securities removed, affecting TDS applicability. Clause 81 of the Finance Bill, 2023 omits proviso clause (ix) to section 193 of the Income-tax Act, which had provided that no tax shall be deducted on interest payable on any security issued by a company where the security is in dematerialised form and listed on a recognised stock exchange; the amendment takes effect from 1st April, 2023.