First sales tax return

Hi,

I have registered certificate date is 03/07/2015.I know that 1st return is quaterly.

What is the from date and to date for return. When i returning from 03/07/2015 to 30/09/2015.

It showing msg that ur return period in six monthly and u enterd quaterly. Because when i searched on "Know your TIn" it showing ur period is Six monthly.

I have also paid the late fee. But when returning it showing above msg.

Please help me.

Regards,

Jeetu