1) I have already filed a ST return of my client for april to september 2012 in october 2012 itself, but is there any requirement again that i have to file another return for period july to sept. 2012 uptil 15th april, and how is that going to be done i.e., in what manner.
2) And for october 2012 to march 2013, what is the last date for filing return of service tax.
I think there is some misunderstanding with you.As it is not possible for you to file a half yearly return as mentioned by you i.e.Apr-2012 to Sep-2012 in the month of October-2012.As ACES allowed only quarterly return i.e.Apr-June & Jul-Sep 2012.
I think you check on your side and file the return for asap.
ACES till to date not declare the dates of filing the return for the period Oct-Mar 2013.Seat tight and check ACES & CBEC website regularly.