I have received letter from service tax department regarding non filing of ST3 return.but as per my STRC No am not providing any services, just register with department only.
Now am giving reply letter to service tax tax department
06 March 2013
Once you are registered with service tax department you have to file service tax return every half-yearly irrespective of provision of service.
There is good news for you that the Government has announced Amnesty Scheme for such defaulter. So after its approval you can file all returns from 2007 without interest or penalty.