I am doing BSc(hons) Computer Science from Delhi University and I am confused should I pursue MS OR MSc CS forward. Iwill be giving exam in 2020 and mostly I am getting coaching institutes for MS IIT JAM.So what should I pursue

M.S. program offered by IITs is specific to research (it's called M.S. (by Research) programme). So, if you're interested in research studies, then you should definitely go for M.S. over M.Sc. It's considered equivalent to M.Tech. in some standards.

I'd suggest reading up on different programs offered by the IITs and weigh in against your own interests. Quora is a wonderful resource where you can find people who have done MS from various IITs sharing their experience. If you don't find what you're looking for, ask it and people will respond.

Some links below:

https://research.iitm.ac.in/

https://www.quora.com/How-is-an-MS-from-IIT-Kanpur

Hi Megha, I would strongly suggest you to go for MS from IIT, which will help you if you want to go for PhD. etc. After MS from IIT you can easily get the opportunity to do PhD. from foreign countries such as US, Germany, etc.