Service tax return oct-12 to march-13

Dear Sir/ Madam,

I have one query about of service tax, I am filling ST3 for period oct-12 to march-13, we are service receiver for reverse charged mechanism.

The query is, from july-12 to may-13, we could not paid RCM ( service tax 75 % )to government. After we realized that for payment & we paid RCM in Aug-13. With interest. For period from july-12 to may-13

My query is, can we show the RCM in return form period oct-12 to march-13 in manpower recruitment.

1. I shown RCM in ST return but it can’t accept, because amt not tally with month wise.
2. We paid ST for RCM in aug-13 with interest. Which month we show the RCM amt with interest. Because ST return period is oct-12 to march-13.
3.  Can we show it in aug-13 ST return ?  

regards,

NITIN

Mobile no.9689881201