Dear Nilesh, the basic eligibility criteria for BBA LLB is that you should have passed 10+2 with a minimum aggregate of 50% in Science/Commerce/Arts/ Honours streams. If its for B.Com LLB, Commerce is mandatory. But for BBA LLB,  any stream between Science/Commerce and Arts/Honours should be good. However it also depends on the University and the Institution that you want to apply for.