Hello,
The marks which you have scored in your JEE entrance exam is quite impressive and now as you are looking for CSE branch in IIT Gwalior, than i would say that you should definitely try for that as you have really good marks to compete and also your chances of getting admission is also good, but at the same as we know that CSE branch has a huge crowd, means a number of students applying for this field is quite high compare to others. As you have also mentioned that you belong to OBC category hence, this will be very helpful for you to get admission as you will have a little benefit of it as well.
For more clearance i will suggest you to get your rank by rank predictor so that than you will have more knowledge regarding your current position and due to which you can compare your rank with many more other colleges also.
The below given link can be used for calculating the rank :
JEE Main Rank Predictor - Know your expected IIT JEE Main 2021 Rank by ...
Thank you..
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