if someone got 93%in JEEE MAIN but in HSC got 53%aggregate and only 39%in PCM. can he get admission?
Yes, you can proceed for admission.
IITs, NITs and similar universities select students based on marks of JEE Main exam not on basis of HSC.
One just have to pass HSC exam to be eligible for JEE Mains counselling. Counselling will be purely based on JEE Mains exam marks.