Hey.
There are various types of integrated law courses provided by various law colleges all over India like BA LLB, BCOM LLB, BBA LLB, BSC LLB etc. So the subjects you study will depend on which course you choose. If you choose BA LLB then you will study subjects of both BA as well as Law. Ba subjects like Economics, History, Political Science, Psychology, Sociology etc. This would differ from each college. And Law subjects would include Torts, Contracts, Constitution, Criminal Law, Civil Law, International Law, Business Law, Company Law etc.  So similarly if you choose BCOM law you woul study the subjects of Bcom along with Law and so on with other courses too.
Best of luck