Mr. Krishna, a resident Indian aged 61 years, maintains a saving account with a co-operative landdevelopment bank and he earn Rs 20,000 as interest on saving account for the Financial Year 2023-24. Mr. Krishna also maintains a fixed deposit and recurring deposit account with Mani Finance (A Non- Banking Finance Company) and earns Rs 25,000 and 10,000 as interest on fixed deposit and recurring deposit, respectively. What would be the deduction allowable to Mr. Krishna under Chapter VI-A if he does not opt for the section 115BAC for the A.Y. 2024 -25?