Hi,

Congratulations! You are probably stuck in the college vs course confusion.

IIT Jammu is one of the new IITs, however it is progressing really well, especially it's Mechanical Department. The faculty is impressive, as well as their societies and participation in important competitions have already started in such a short span of time. The course is same as that taught in premier IITs. Being an IIT, you can surely expect good placements, with core companies of the field visiting it. The first batch of students will pass out next year. According to me, you should go for this if you are okay with doing Mechanical Engineering.

Sreenidhi Institute of Science and Technology is a private institute and you cannot really expect good placements, except for mass recruiting companies who offer average packages. The faculty will also not be as good as an IIT. If you are keen about CSE, you can consider it. It's upto you to decide depending on your priorities like course, location, placements, research opportunities, faculty etc.

All the best!