GATE

You can get direct admission in M.Tech mechanical engineering in private institutes or universities.

Hello Sunith,
GATE is only one of the more than 10 different entrance exams for joining PG in engineering. It all depends on what score your intended institution accepts. You need to appear for that CET.

Hello Kancharla,
Firstly and importantly, please remember that no exam is difficult. It's our preparation that matters. Secondly, for GATE syllabus is that of graduation. How will you start preparing for it in 2nd year? My advice firstly concentrates on studying for graduation. After this only prepare for GATE.

Hey there,
It entirely depends upon your choice as the three fields are entirely different from their own perspective.
If you want to carry on your study in the specialized field to get your Masters, then GATE is a good option.
If you want to join work and put to practice what you have learned, then IES would be perfect.
If you have managerial skills and want to get into management field then doing MBA would be great.

Final year student or graduate of Bachelor's degree (or equivalent) in engineering/ architecture or Master's degree (or equivalent) in science, computer applications, etc. can appear for GATE.

There is no course where you can learn full syllabus of BBA and Information Technology in short time period. There is no short cuts available for you. You may do BBA with IT specialisation to meet your needs.

Hello Vishvajit,
GATE - graduate aptitude test in Engineering is a national level examination conducted for the admission into post graduate studies such as:
M. E/M. Tech, M.Sc etc. in the government colleges.
It would give you a chance to get admission into the IITs and other top institutions for post graduate studies.
To clear GATE, you need to have high conceptual knowledge on your B.Tech, as the questions are based on your undergraduate degree only.
Right from second year, you need to Master all the concepts. Then, you may refer the previous year papers and prepare accordingly.
Use good books for preparation.
All the best.

H K Malik for Physics
Van Bulcenberg for Network Analysis and Synthesis

Yes IITR is one of the best colleges for computer science education especially masters. M.Tech from IITR will fetch you a better placement in the future.