If you come under one of the restricted categories, such as SC, ST, OBC, or PwD, the majority of BTech colleges and universities in India do grant some kind of mark exemptions. Regarding the entrance exam/Class 12 merit cutoffs and qualifying requirements, you are eligible for a 5% mark relaxation.
In other words, if students in the general category must receive at least 55% on their Class 12 board exams in order to be admitted to BTech programs, then you must receive 50%. The admission cutoff lists use the same formula.