Rate of WCT / VAT under Composition Scheme

Hi,

We are contractor based in Maharashtraand registered under Composition scheme, charged WCT (VAT) @ 5% along with Service Tax @ 4.12% under MVAT Act.

Now, we are going to construct building as a contractor  at Orrissa. We already allpied for VAT registration at Orrissa.

Now, kindly suggest me, which rates are applicable for charging WCT (VAT) and service tax at Orrissa and whether we will follow the Maharashtra Sales Tax rules or Orrissa Sales Tax rules.