GATE

Hi Ravi, GATE exam is for enhancing the knowledge of a person who'd done their graduation it helps you to know your skills.

Hi
You can get some information from the following link
https://www.shiksha.com/b-tech/articles/highest-paying-engineering-branches-know-top-recruiters-salaries-offered-blogId-8228
Thank you.

It entirely depends on the rank you get in GATE. A very good rank, say 80, may get you a job in PSUs. A good rank will get you admission into top colleges. A decent rank will get you admission in not-so-top colleges. An okay rank will give you inspiration to work harder in next attempt. A bad rank gives you experience. If you want industrial exposure, you should go for a job. Choose GATE only if you want to opt for government sector or academics. There is not much you can do with your GATE score apart from these. Of course, you can apply for some foreign universities for Masters with your GATE score (Like NSU/Nanyang ).

SRM University, Sonipat conducts its own exam for Ph.D admission. Ph.D Mechanical Engineering (ME)
Eligibility: Candidates must have passed Post graduation in the relevant discipline from a UGC-recognized University with 50% marks in aggregate. However, an applicant with M.Phil/CSIR-UGC/JRF/NET/SLET cleared in the relevant subject is exempted from the Entrance test. As per UGC notification, the minimum duration for Ph.D. is 3 years including course work and a maximum of 6 years (full-time/part-time).

No, you first qualify GATE then you can take admission in ME or M.Tech in reputed institutes. But there are some low private colleges to which you can apply for ME. But the thing is you will not get a stipend.
Good luck.

You can go for the exams conducted by BARC and ISRO which are usually conducted after the GATE exam.

No, you cannot participate in the GATE counselling. You need to be in the last year of B.Tech or have completed B.Tech to participate in GATE counselling.

There are some Navratna PSUs which can accept. But it is rare.
Good luck.

GATE exam is required to do M.Tech and also to get into some PSU (government-owned corporations are known as Public Sector Undertakings (PSUs) in India).