Hello aspirant

If you wish to pursue Diploma directly without appearing class xii then you will get admission to diploma course on the basis of class x .

After completing three years diploma Course you will bd eligible for pursuing b tech or bachelor's degreein Engineering.  You will get lateral entry to the second year of Engineering.

Colleges offering b tech ir bachelor of engineering course are

IIT madras

IIT kanpur

Parul university,  Vadodara

Vivekanda Institute of technology,  chembur, mumbai , maharshtra .

T sect , Bandra , mumbai ,maharshtra

Symbiosis,  pune

NHCE , bangalore

RCEW , Jaipur

You may refer the link given below

https://engineering.careers360.com/colleges/list-of-be-btech-colleges-in-india