Dear candidate, there are many categories made by VIT to admit different students in different branches. To get CSE from category 3,4,5,etc. you have to pay more fees. The normal cutoff rank to get CSE in VIT Vellore, main campus is 6K-9K. Chances are less to get CSE at 18K rank. You can check for non-tech branches or CSE at other VIT campuses. You can check previous years cutoffs here:

https://engineering.careers360.com/articles/viteee-cutoff

The following factors affect VITEEE 2021 cutoff-

• The difficulty level of the examination
• Number of candidates who appeared in the exam.
• Previous year cutoff trends for BTech.
• Total number of seats available this year

Hope, it helps!

Dear Asprant,

I am sorry to say this that for your rank you will  be getting only  non IT groups in viteee. Don't get disappointed try to look for some other branch of your interest or better luck for next time. Don't loose hope that may destroy you from succeeding. ALL THE BEST.