Tds under section 104j

Dear All,

I have made a payment to a consultant on 01/07/2012 amounting to Rs. 25,000. At that time as the transaction is below Rs. 30,000, so i have not deducted TDS under section 194J. Now, i am making another payment of Rs. 55,000 to same consultant and deduct TDs on the whole amount of Rs 80,000.

My query is that whether interest is also required to paid for late deduction of TDS for Rs. 25,000.