Dg set excise duty

A company having offices in SEEPZ and STPI zones, also have place of business in Haryana (which is not SPTI or SEEPZ). They purchased DG Sets from Jammu vendor for Haryana office. The vendor has added 10.3% excise duty on the bill for the D.G. Handsets. I want to know if in the billing address they input it SEEPZ or STPI instead of Haryana and delivery as Haryana only, will the company be exempted from paying the addtional 10.3% excise added in the bill by the vendor.