Computer Science

You need to appear for the entrance exams like GATE (Graduate Aptitude Test in Engineering) and according to your score, you'll get your colleges/university/Institute like http://entrance-exam.net/list-of-entrance-exams-in-mtech/

GIS and RS are definitely a very good pick after B.Sc. Computer science with a lot of advancement around climate research, disaster management and GIS holds a lot of potential in the future in India and abroad.

The eligibility criteria is: Pass in +2 with maths or computer Science/Business Maths/Statistics. Go through this link, and you get an opportunity to view eligibility criteria for several other streams that might be useful to you in future or your friends, relatives, and dear ones.
http://www.velsuniv.ac.in/course-eligibility.asp
The scope is excellent undoubtedly.
Wish you luck.

Screening is based on merit and you have taken two years extra plus your percentage is also not good, hence you might face some issue in the admission, for more details contact the college authorities:
https://www.shiksha.com/science/course/m-sc-in-computer-science-maharshi-dayanand-university-rohtak-270929

Evening or part time engineering courses are not valid any more as per the latest Supreme Court verdict, hence would recommend you to join a regular course for better career prospects.

MCA a better choice. Good luck.

Head Office
#35 Suprima" 7th Main Road, CBI Main Road, Ganga Nagar, (Opp to St Jude Church) R T Nagar Post Bangalore 560032
Contact 91 80 23439494
Mobile 99166 30429 , 99166 20429
Email: info@brightintleducation.com
Branch Office
#663, 1st Floor, 11th 'A' main, 5th block jayanagar (diagonal opposite to Ragavendra swami temple road) Bangalore 560041
Mobile 97427 24689 , 96201 72333
Email: info@brightintleducation.com