First of all I would like to congratulate you for your success in prestigious GATE exam.

After going through the present scenario, I can say that you had a fair chance of getting Interview call from different Public Sector Units (PSU's) and also from IIT Bombay for Master's.

Life at IIT Bombay : As far as academics is concerned during the first semester you will have more coursework (around 6 courses) compared to the subsequent semesters. There will be some compulsory courses you should do and some electives, but you can skip some courses and do them in the following semesters. So the people who haven't studied at IIT might feel some difficulties in handling the courseworks. But if you have good time management skills with no procrastination and the ability to switch over the things will help you to do your academics in a better way. The professors will expect you think about the subject lot rather than mugging up something and write it in the exams. As a M. Tech student you will be expected to give coursework presentations and seminars, talks, etc. The course is entirely controlled by the course instructor only. Ex: grades, weightages, syllabus etc.

During the second semester you will feel some comfort in academics because at the time you reach there, you would have learned how to handle the course works. At the end of the second semester you will be in a position to select your supervisor or guide for your M. Tech project which you will be doing in the whole next two semesters. You have freedom to choose your guide according to your area of interest and the professor you would like to work. It's allowed in IIT that you can do interdisciplinary projects with the collaboration with other department professors.

Hostel life at IITB is joyful except mess food sometimes. In the first year they will allot two persons per room. So you have to share your room with one of your friends due to more number of students and shortage of rooms. I would say if you don't stay inside the campus you will miss a lot of things (events) which will be happening frequently in the campus. In the hostels you will get most of the basic needs and facilities. Example: In each hostels there will be stationery shops, canteen, indoor games room, gym, laundry facility. In each room LAN connection will be there and also WiFi. Mess food will be good (not so bad). You will get both North Indian and South Indian dishes. The menu is framed like that. If you have any problems regarding mess you can report to the mess council. Once or twice a semester they will arrange gala dinner (grand dinner). There will be a separate hostel council; they will conduct a lot of events and competitions, cultural programs, workshops, etc.

In the view of extra curricular activities the one only IIT Bombay is the best place. Lots of organizations, clubs, events, student groups etc. The famous festivals are techfest, moodindigo, e-summit, etc. Other than these lot of student groups, to improve your technical knowledge in a particular things for example: team Shinya, Tata Centre, robotics club, tinkerer`s lab, STAB, under water veichle team, racing team, IITB satellite team etc. There are separate groups are there for PG cultural and technical activities. In sports, almost all type of sports are available inside the campus. You can join any sports and practice there will be separate coaches for every sport . Everyday there will be some events and you will not find time to attend those things.

Placements are pretty good in IIT Bombay. Every year around 350 companies are visiting IITB campus. This year onwards the PSU’s started to visit IITB after few years gap. The M. Tech Placements will vary depending on the department and the program which you have taken. But the overall the placements are good.

The exposure what you are getting at IITB is unmeasurable. If you have the intention and willingness to learn anything you like, you can become a master in that in IITB.  In a nutshell, the life at IITB is heaven.

You can also check your best chance for PSU's by following previous year cutoff. Visit this link : https://engineering.careers360.com/articles/what-are-gate-scores-for-psu-recruitment

Hope I answered you question. Have a nice day. If you have any question please use the comment section.