Lovely Professional University does not offer a B.Tech in Petroleum Engineering. But you can opt for B.Tech Chemical Engineering at LPU.
Petroleum Engineering is a subset of Chemical Engineering. Chemical Engineering deals with the use of Chemistry to create novel compounds, food, fuel, and medications. A Chemical Engineer can work in the Petroleum Industry as well.
Both Government and Private sectors have openings for Chemical Engineers. As a Chemical Engineer, you can work in various sectors like- Process Design for Fire and Explosives, Food Industry, Pharmaceutical Industry, Thermo-Fluids, and more.
The Chemical Engineering faculty and curriculum are both good at LPU. Thus, I would suggest you consider B.Tech Chemical Engineering at LPU.