Hello Sparsh!

For mobile app development course, you can go for BCA i.e. Bachelor's in Computer Application or B.Sc.in Computer Science. Since you have PCM, you can also go for software engineering. After that you will have a lot of scope.

• B. Sc (Hons.) Computer science is available in Delhi University, but 65% isn't enough for it.

• You may apply in Indraprasth University (IPU) under which there are many college which offer BCA courses.

The admission in IPU occurs through entrance examination.
The fee structure for BCA is around 50k-60k per annum, though it may vary in different colleges.
For B. Tech it's around same 50k-60k, but if you are willing to join an integrated course, B.Tech+M. Tech, it's cheaper.

• Even Jamia Milia Islamia has a course Bachelor's in Engineering (Computer Science), the admission in which occurs through an entrance examination. It's fee structure is like in a range of 15k-25k.

I would suggest you to begin your career in Mobile application by first getting yourself into a good course related to computer science. Most importantly, brush up your programming and coding skills in these years. I am sure you will have a lot of opportunities after that.

All the best! Do well! :)