Sponsorship service - rc amendment

We are registered under say 'Consulting Engineer' taxable category of service.

If we need to pay service tax under reverse charge mechanism in line with Rule 2(1)(d) of service tax rules 1994 for payment of "sponsorship" charges, is amendment of existing RC required so as to add "sponsorship service" in the RC.

Once added, then, every half yearly ST3 will show a NIL return on this particular service category as every time payment on reverse charge will not be in operation.

Regards,