Hi

The process is very simple, after completing diploma in engineering you can pursue Bachelors degree in Engineering. It is called as lateral entry. For you the course duration will only be of 3 years. That means you will be skiping 1 st year.

Now as far as the admission process is considered there are two ways in any which college in India offers admission for B. Tech Lateral entry.

1. Based on your diploma score.

2. Based on entrance test conducted by college.

So the selection process will depend on college you are applying for.