Dear Lokesh,
ESIC returns are to be submitted twice: a half-yearly return and an annual return. From April to September, the return must be submitted within 42 days after completing the time period. From October to March, it should be submitted within 42 days after completing the time period. You need to use Form-5, Regulation-26.
The return should be filed at the nearest ESIC Local Office. You are required to attach an ESIC Challan copy with the return and deposit only one Form 5. If you have any queries, feel free to contact at [Phone Number Removed For Privacy Reasons].
With regards, my sincere request is not to misguide the members:
The Half-Yearly returns have to be submitted in "QUADRUPLICATE," i.e., in FOUR COPIES. Three copies will be received by the Branch Office, and one copy will be returned to you with an acknowledgment.
There are two Half-Yearly returns: one ending by 31st March (Oct-Mar), which you are supposed to submit by 12th May, and the next one ending by 30th September (Apr-Sept), which you are supposed to submit by 11th November. Additionally, you have to submit an Annual Report on or before every 31st January.
I hope this clarifies your doubt.
Regards