Hello aspirant!

You cannot take admission in VIT vellore without a minimum of 60% Aggregate in PCM (do not confuse it with 60% in overall class 12th)

As you have 50% in class 12th pcm, it's not possible to take admissions there. Please try some other colleges.

To know about more engineering colleges after 12th visit this link.

https://www.google.com/amp/s/engineering.careers360.com/articles/btech-admissions-on-basis-of-class-12th/amp

I hope this helps.