Dear,

Admission in the all b.tech courses are selected on the basis of marks scored in the last qualifying examination in the relevant discipline or with Maths as one of the subjects i.e 12th std marks. Entrance is not a compulsion but admission in is also done on the basis of marks obtained in Joint Entrance Examination (JEE Mains). You can get admission for any b.tech course with least 45% in 12th PCM.

Hope this helps!