One is for General Category and another is for SC (Scheduled Caste) category. Cracking Computer Engineering in Nirma is the most difficult. If you are a General Category student from Gujarat Board, according to the cut-offs of 2016-17, you will need to score somewhere between 270-290 in 12th PCM and between 230-270 in your JEE Mains. For a Scheduled Caste student, the score will be between 230-270 for 12th PCM and 91 to 110 in JEE Mains.