Hello,

You can join Army Institute of technology, pune( 109 NIRF rank) where computer science engineering branch is provided under BTech degree. Degree college doesn't provide any special class for civil or military exam. it has to be you have to learn to manage time to prepare for CDS or AFCAT exam.

you can join any engineering college and prepare for civil exam. all you have to do is manage academic and make out time for practice for exam. if you want coaching then you can take to get the appropriate competitive environment and it will inspire you to work hard.

Hope it helps!