19 September 2013
As per the section 40A(3) payment upto Rs.20000 is acceptable but more than Rs.20000 is not acceptable. So in your case the transaction is valid and allowed as expenditure.
11 October 2013
Agree with Experts, As per Sec 40{a}3 of the IT Act.. Where the assessee incurs any expenditure in respect of which a payment or aggregate of payments made to a person in a day, otherwise than by an account payee cheque drawn on a bank or account payee bank draft, exceeds {20000} twenty thousand rupees, no deduction shall be allowed in respect of such expenditure.