LLB

Hi Kunal,
If you wish to become a lawyer and be able to practice in the court of Law, you will have to complete the 3 year LLB program for which the eligibility is a graduation in any stream. Most colleges have a different provision for admission. You need to contact the institute officials of Jamia personally for specific admission details as it differs from one college to another.
Different law Universities and colleges conduct different law entrance exams, to admit students to their courses, like NET (National Entrance Test), CLAT (Common Law Admission Test), Department of Law University of Delhi take admission through a common Entrance Test for all the three Law Centres (Campus Law Centre, Law Centre-I and Law Centre-II).
List of top law colleges:
http://goo.gl/2pey6f
Hope this information helps. Please feel free to revert.
Wish you luck.

Both the courses are very closely related, but there is quite a bit of difference in terms of the focus of the subject and career opportunities associated with the topics. Below are a few specialized programs associated with all the three courses, you can have a glimpse:
B.com LLB (Hons.) with emphasis in Taxation Law: The program combines the knowledge of the economic sciences with special training in taxation law. The trade, finance and commerce component of the B. com. LL.B. (Hons.) course includes subjects such as accounts, finance, economics, language and, which are supplemented by a range of law courses, and together they provide a broad-based multidisciplinary foundation to the curriculum.
BA LLB (Hons.) with emphasis in Energy Laws: The program has been prepared with an intention to create dedicated professionals who are well trained in legal framework and contractual requirements for energy sector companies.
Students are exposed to the latest laws and judgments pertinent to the core sectors of India, apart from studying the regular legal subjects.