Hello Adithya,
The cutoff varies every year depending on the factors such as No. of candidates appeared, Difficulty level of the exam, Performance of the candidates etc. As per the previous year cutoff, You might have the chance to get a seat in VIT Vellore for CS with specialisation in information security.
You can check the counselling related information about VIT with the given below link.
https://engineering.careers360.com/jee-main-college-predictor
Good Luck!
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