Engineer

Hello Abhi,
For getting into top notch product based companies like google, Microsoft,& cisco, you need to do to get into very good colleges like IITs, NITs, IIITs and BITs Pilani to increase your chances to get placed into these, otherwise its very tough for you to get into these companies you have to be your own.

For getting into construction field, you need to take civil engineering.

Please follow this link for complete details of rank and college:
https://www.shiksha.com/b-tech/resources/wbjee-college-predictor

SSC means staff selection commission is a well-paid government job under central government. Engineers serve particular departments of government.

Yes, your becoming engineer does not depend on your 12th score.

B.Tech mechatronics is the best branch to become robotics engineer. You can also opt for mechanical engineering.

Hi,
The future is purely dependent on computers and robots.
The mechatronics engineering includes mechanical, electronics and little of computer science engineering. So if you are a mechatronics graduate, then you can be easily placed in a job in the future. But you need to update and upgrade yourself a lot to be successful.
There is a good scope for mechatronics in the future.