Hello Sandip

You must score minimum 70 to 75 % aggregate marks to get diploma in engineering in good college , as competion has increased now a days , however eligibility criteria is of getting minimum 50% aggregate marks in Std x .

The admission will be given on merit basis,  also it depends upon how many seats are available for the course in particular college.

Eligibility criteria for Diploma in engineering- The candidate must have passed class x with minimum 50% ( 45% for sc and st category)  aggregate marks from government recognized school. English subject is mandatory.