This is really a common question students ask me many times and I made several post around this topic but never addressed it directly. I think it’s better to make few things very clear to all students preparing for GATE. It will be useful for them to make decision too.
When it comes to GATE we need to take into account two things. First one is GATE eligibility and second things M.Tech admission eligibility. When you want to take decision about a GATE paper for upcoming GATE exam, please take both into picture and ask yourself, do you really want to change your stream of engineering? And then which field you want to take. Based on that select GATE paper to prepare and appear for.
As for as GATE eligibitiy is concerned students have a basic criteria for being eligible for GATE exam. As long as your are eligible to appear for GATE exam you can choose any paper to appear. For more details about GATE eligibility please refer to post Eligibility For GATE. Once you are eligible for GATE exam you are eligible to appear for any paper.
Just appearing for a paper in GATE paper does not guarantee that you will get admission to the desired field of engineering. For many engineering domains there are few basic courses have to done, if your previous domain don’t offer that you can find a way to join that course. Also M.Tech offer specialization so you can find a course that suits your background.
Let me explain this with an example. I am a CS student, I love civil engineering. I can appear GATE in civil engineering paper but I cannot take admission to core course, like structural engineering, transportation .. etc. But if do some research I can make myself eligible for courses like Remote Sensing and others, as these courses are mostly focused on computational techniques.
I strongly recommend you check How To Change The Branch in M.Tech and other IITs and NITs official admission brochures to find out your desired course and eligibility before making decision. Also remember you can only appear for one paper so be careful about making a decision. Many times even you don’t to write GATE paper in certain field to be eligible for M.Tech admission in that department.
Computer Science is most common branch to swap in. The big issue with this is huge competition. Highest number of applicants, high marks and high GATE cutoffs goes in this branch of engineering. I suggest you to be calm and make your decision. I have seen many non CS students in M.Tech CS in IITs. If you have guts stick to it, believe me you can make it.
Hope I cleared this doubt with this post. Feel free drop a comment if you have further questions. Also Do share with friends. You can like I n I to get updates on your facebook and also subscribe to get more information in your email.
Wish you all a great luck ahead.