Adi,

BIT MESRA IS one of the CFTIS and follows the same procedure of admeas NITS.

MODE OF ADMISSION IS

• One needs to take the JEE (Main) exam and either secure at least 75% marks (65% for SC/ST/PwD) in Class XII or be within the category-wise top 20 percentile in his/her respective Class XII board examination.
• Admissions are done on the basis of rank in JEE (Main) through JoSAA Counselling and CSAB Special Round .

So you need to apply for Josaa which amy start at 24th June there is no official announcement yet. Then they will release round wise closing rank for different branches in BIT MESRA.

Hope it helps