Hi,

A person can enroll for a diploma course even after class 10 by ITI, Polytechnic, etc. There are diploma courses that require the candidate to be an HSC pass-out. Diploma courses at the masters level require the candidate to have a graduate degree.

You cannot pursue ITI and engineering simultaneously. Even if it is possible then no one can study two subjects at the same time.

Hope this helps.

All the best.