In the case of Central Works Contract which section shows that WCT Charged in the state where contracted is executed.
Section - Central Works Contract
Atul Anand
Works contract taxation: executed portions are taxable under the local state law where performance occurs. A works contract executed in part or whole within a state is governed by that state's local tax law, so the portion executed in that state attracts the state's sales/VAT/CST provisions rather than being treated as a central works contract. (AI Summary)
TaxTMI