Hello, 

For undergraduate law programmes, these are the following criteria:

• You should have passed Senior Secondary School Examination/ 12th Board Examination from any recognised educational institution.
• You need to score atleast 45% marks in your qualifying degree to appear in CLAT 2019. For SC and ST categories you need to score at least 40 percent marks in the aggregate of subjects.

For postgraduate programmes  these are the eligibility criteria :

• If you are applying for postgraduate law programme, you need to have a bachelor’s degree in law. The law degree can be of five-year integrated or three year law programme from any institution approved by Bar Council of India.
• You need to score at least 55 percent in thedegree. Whereas for  reserved categories, 5 percent relaxation has been given where in they need to score 50 percent marks in their law degree

Hope this helps .......