Hello,

You haven't mentioned the name of the University for which you're seeking fee structure for BCom-LLB, it's not the same for every University, but the range is between Rs 30,000 to 1.5 lakh on an annual basis. In order to know exact fee structure you need to provide the name.
Admission process varies,some conduct admission on the merit of the qualifying examination while others conduct entrance test.
Some of the top entrance test conducted for BComLLB are LSAT,SET,AILET etc. Eligibility is passed 10+2 from a recognized board with 50% aggregate, there's relaxation of 5% in case of reserved category.