Hello Aspirant,

Sorry I'm sure about AIIMS in particular, maybe it doesn't have one since it's not explicitly mentioned on its official website but many other in fact most of the colleges now offer NCC to the students.

But even if your college doesn't offer NCC, please not that you can enroll in NCC department of any other collee or university. You'll just have to provide asked documents and you can easily go for it .

Hope this helps you!