GATE Scores

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.

Please check for your eligibility to apply for the PGCET examination from the criteria mentioned at the link provided below:
https://www.shiksha.com/mba/exams/Karnataka-pgcet.

Yes, you may get. You have a fair chances of getting a seat in IIT just wait for counseling procedure that is CCMT but I have doubt that whether this IIT offer this course in which you want to take the admission since many other IIT too offered this course but this IIT does't because last year also this IIT did not release the cutoff for power electronic. So I suggest you take just verify whether the course is available in the IIT or not. Also check other IIT like Delhi, Bombay this might offer seat in power electronic.

GATE exam is conduct for 100 marks only, how can you get 369.

You will not get any decent college. I would suggest you to drop a year if you can & again prepare for GATE.
All the best.

GATE qualified candidates can follow the following procedure to apply in IPU for M.Tech CSE:-
1.Apply by filling the application form first. The last date of filling the application form is May 1, 2018.
2. After having filled the application form, a merit list based on different scores will be issued by IPU. Keep yourself updated about the merit list by visiting http://www.ipu.ac.in/
3. Based on your gate score you will be called for counseling most probably in June/July.
Hope this helped :)