Gst double registration of one firm

We told this to Custom and excise officials but they didnt listen and threatened us. Now what to do we have two regns.

You can Register your all registration NOs in one Enrollment Usr ID. If you have VAT, CST, Central Excise, Service Tax and All other registration Number you enter One ID under the separate head. Afte you will complete the registration your all R/N registered in GSTIN. Never mind for Other User IDs....