What is the penalty for late tds deduction

Dear Experts ,

Please advice me in this Problem.

One of our client is paying rent of ₹30,000/- a month and he failed to deduct TDS..He has deduted TDS for the whole year  (April to january) from now on 06/02/2014 and he will pay the same on 07/03/2013.I am aware of the fact that he has to pay interest of 1 % for the late deduction .. But does he has to pay the penalty for late filing of quarterly returns also ??

Thanks in advance for your advice