Colleges in Delhi/NCR

Yes, CSE is a good course to do and you can see yourself growing in this field. If you are asking about private colleges you can follow the given colleges:
Indian Institute of Technology, Delhi
Netaji Subhash Institute of Technology
Delhi Technological University
Indraprastha Institute of Information Technology
Maharaja Agrasen Institute of Technology

Check the list of all B.Pharma colleges/institutes in Delhi/NCR listed on Shiksha at the link provided below. Get all information related to admissions, fees, courses, placements, reviews & more on B.Pharma colleges in Delhi/NCR to help you decide which college you should be targeting for B.Pharma admissions in Delhi/NCR. https://www.shiksha.com/medicine-health-sciences/pharmacy/colleges/b-pharma-colleges-delhi-ncr.

GGSIPU 2018 College Predictor
Use your GGSIPU 2018 rank to see where you can get admission at the link provided below:
See the courses, colleges & rounds you may crack
The result is based on admissions data of GGSIPU 2017
Get resources & insights on colleges & courses
https://www.shiksha.com/b-tech/resources/ggsipu-college-predictor.

All government colleges take admissions on the basis of the entrance exams result. Since you didn't give one it is highly unlikely now. One thing that you can do and don't place your hope on it. You can wait and later contact the colleges to see if they have any seats vacant or they are conducting spot counselling.

There are 100s of college which provide BCA course!
Choosing one of them is really a tough decision!
Some of the best colleges are:-
ITS mohan Nagar
IMS Noida
IMS ghaziabad
ASB Noida
Amity Noida etc.
These are some good college which are government recognised, good infrastructure with good faculty team and have all possible amenities like modern labs, huge library etc.
Choose wisely!
Good Luck!

There are many universities offering B.Sc. Or B.Voc in medical imaging technology or radiology but I would suggest to go for B.Voc as you get to work with industry experts as part of course curriculum.

you can go with amity or galgotia if you don't have any financial problem but if it is then go with aktu affiliated colleges in NOIDA like niet jss or iimt