Hi

As per previous year cutoff ranks, with a rank of 20k you can get the following -

Civil Engineering, Biotechnology(low chance), Bio Medical Engineering, Mechanical(Spec. in Energy Engineering) (low chance), Mechanical Engineering(low chance), Chemical Engineering(low chance) or Production and Industrial Engineering at VIT University, Vellore.

Electronics and Communication Engineering, Electrical and Electronics Engineering, Mechanical Engineering, Fashion Technology, Electronics and Computer Engineering at VIT University, Chennai.

Check this link to know better about the Previous year Cutoff Ranks of VIT University:  https://engineering.careers360.com/articles/viteee-cutoff.

Best of Luck.

Hope this helps.

Cheers!