GATE

Yes, you can apply for Visakhapatnam Steel through GATE 2018.
Good luck.

There are over 206 M.Tech colleges in Maharashtra. Please refer to the link provided below for a detailed list of these colleges. You should be able to navigate to a college of your choice using the filters on the web page. Regards. https://www.shiksha.com/engineering/colleges/m-tech-colleges-maharashtra.

There is no restriction for the appearance of GATE exam. You can appear as many times you want.
Regards.

Yes, you can appear in GATE but you will have to complete your graduation first.
Regards.

You need to score more marks in order to get admission in DTU, like around 60 marks. Hope it helps.

Generally the cutoff didn't fluctuate and from 3-4 years it wasn't changing .
But no one can say about the gate cutoff for 2018. It will be same or will differ with 1-2 marks.
Most probably it will stay as same .
For choosing any course from particular IIT please ensure that IIT offers the course or not.

If you have a valid GATE scorecard, you are directly eligible for admission in participating institutes of Gujarat PGCET. If you are not having valid GATE scorecard than check the below eligibility for writing PGCET entrance exam-Candidates must have passed the 10+2 qualifying exam or any other equivalent in the relevant discipline with minimum 50% marks.

Of course, you can pursue M.Tech twice, but both M.Tech have at different duration of time i.e after completion of first, you can do 2nd. Or, you have do 1st as distance learning mode and at the same time you could take admission in 2nd M.Tech degree with your valid GATE score card. Hope, I have given complete details regarding your doubt.