CLAT is the National Level exam for the admissions into the undergraduate law programmes including BA LLB, BBA LLB, BCom LLB and BSc LLB into 21 NLUs.

To apply for the exam you should have minimum 45% as a General Category & 40% as a reserved category. You can check the complete information with the given below link.

https://law.careers360.com/exams/clat

AILET is the exam for five-year integrated law programme in National Law University, Delhi. As per the eligibility you should have minimum 50% in class 12th. You can check the complete Eligibility with the given below link.

https://law.careers360.com/articles/ailet

There are other state level & university level exams if you want to know about any specific exam then lete me know.

Good Luck!