Hi Ashok,
Vellore Institute of Technology is the conducting body of VITEEE. The basic eligibility criteria for getting admission here is that the candidate seeking admission should have passed 10+2 examination with a recognised board with at least 60% aggregate marks. Then he/she needa to qualify VITEEE.
On account of Covid19 pendemic this year VIT cancelled VITEEE and the students would be given admission based on class 12 percentage. Although the exact cutoff can't be predicted in advance we can make an estimation. You have scored 87% in your board. With this percentage there is lesser chance that you will get admission there. If possible, you will have to compromise with your branch. Nevertheless do give it a try and hope for betterment.
Do check out the following link for updates: https://news.careers360.com/vit-announce-btech-rank-list-today/amp
All the best.
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