Hello Kartikay,
Even if each branch has 100 seats then total would be 700 but the rush in CS/IT increases it to around 900 but there are still a lot of seats available now with the new branches opened recently. If you talk about this year then there are more than 1000 seats for B. Tech.
Or you can check the below link for more information as there are not particular information regarding the seat matrix
Hope you will find it useful
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