Hello Aneesh !

As you are pursuing sybcom i.e you are currently in your second year of BMM , so firstly you have to complete your graduation , and after that you have to  complete the 3 year LLB program.

For  LLB different law Universities and colleges conduct different law entrance exams, for admission like

1. NET (National Entrance Test)
2. CLAT (Common Law Admission Test)

After completing your LLB, you can pursue LLM for 2 years duration and specialize in core areas like Constitutional Law, Labor Law, and Securities Laws etc.

Hope it helps!