Hey aspirant !!

You can't take admission on the basis IPWE diploma. You've to take admission on basis of  (10+2) science for b.tech or You have to take admission in lateral entry, the minimum requirements for lateral entry students is minimum 3 year full-time diploma.

For more information about b.tech courses you can vist :-
https://www.careers360.com/courses/b-tech-bachelor-of-technology

Hope this helps you !!