Hello Alfiya,

The selection procedure for this is Prelims Exam, Mains Exam and Interview. Candidates qualifying in the prelims exam will be eligible to appear for the mains exam. Those candidates who qualify in the mains exam will be eligible to appear for the interview which is the final stage. Candidates qualifying in all the selection process will be hired as in Central Forensic Science Laboratory (CFSL).

Hope it helps.

Good Luck!