dear student

 you must have passed your 10+2 Board exam from any recognised Board.You must have Physics,Chemistry and Biology as an Important and main Subjects with these there is no limit for optional subjects you may have any of it may be its Maths.And,You must be Medically Fit.You must have at leasts 45% in your board exam but it may change depending on the college level and in order to have the proper limited intake of student for the Course.

hope this helps

All the best!!!