I have completed B.Sc. I want to do LLB. I am 21 years old. Which entrance exam do I need to get admission in a good college for LLB?

You can take CLAT which is for entering in the national law colleges in India. It's just like IIMs and IITs. You can take AILET which is specifically for NLU-DELHI. You have DU LLB for Faculty of Law, Delhi University. IPU CET LLB for Guru Gobind Singh Indraprastha University. SET (Symbiosis Law Ent

Please visit the following sites for your understanding: https://www.shiksha.com/law/articles/top-law-entrance-exams-2017-blogId-11410 All the best.