Which Taxes are Applicable for Contracts pls suggest

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We are a Contractors & Fabricators of Aluminium & Steel - Windows/ Doors/ Partitions/ Ceiling/ Structural Glazing/ Cladding work etc. We Purchase a Material (i.e.: Aluminium/ Glass/ Plywood/ Hardware/ ACP, etc.) from market & Also taking a service of Powder Coating / Anodizing on Aluminium or Steel from outside service providers & then we fabricates all of above & also do a installation (fixing) on site. Our work Criterial includes are as follows: MATERIAL: Material (eg.: Aluminium, Steel, Glass, Ply, ACP Panel, Hardware, etc.) POWDER COATING OR ANODIZING PROCESS: (done from outside processors) LABOUR: (To be paid to Labours for making & installation on site) TRANSPORTATION CHARGES: (Paid to Tempo/ Truck/ Taxi/ Transporter for delivering of material on site) OVERHEADS: (Rent paid for accomodation nr. site, Travelling Charges for Labours, Management, etc.) PROFIT:  So while preparing an Tax Invoice Which Taxes are Applicable & How many Percentges. VAT/ CST/ ST/ WC VAT --- ? From Our Clients, 1 Client is a Building Contractor and they do a various projects for their clients. Recently we have received a Work order from them and they told us to charge a taxes as follows: on 67% of Total Bill Value - M VAT @ 12.5% on 33% of Total Bill Value - ST @ 12.36% will be applicable. Is it perfect or not acceptable .. ? Pls Suggest specially in our case. Thank you,

AI Summary

Contractor's Tax Dilemma: Conflicting Advice on MVAT and Service Tax for Aluminum and Steel Services A contractor and fabricator of aluminum and steel products inquired about applicable taxes for their services, which include material purchase, powder coating, labor, transportation, and overheads. They received a work order specifying tax charges: 12.5% MVAT on 67% of the total bill and 12.36% service tax on 33%. A respondent advised that their work falls under Work Contract Tax (WCT), suggesting state VAT on 70% and service tax on 33%, with separate invoices for state and central taxes.