India

Hello Vishal,
The best private university in India is BITS, Pilani. The standard of BITS, Pilani is equivalent to that of the IITs. They offer better education and placements are huge when compared to other top universities.
It is good for mechanical engineering in terms of placements also.
Actually, some say that BITS it better than IITs as it has no caste reservation as the IITs
You need to clear BITSAT with a score of 350 and above out of 450 to get mechanical branch.

Hi Kintan,
Since, you already have a Diploma and also a B.Tech degree, you cannot do another Diploma, but you can check for PG Diploma or graduate certificate courses. You must meet entry requirements which are different for different courses and colleges.

No, chances are very low for you to get admission MNNIT with this rank.

NSHM, Durgapur is the best college for HM in West Bengal.

Hi Prashasti,
What is LAST exam?

Hello Neeraj,
Please refer to this link to get more insights on the colleges and branches:
https://www.shiksha.com/b-tech/resources/keam-college-predictor
However, as per your rank, you will get good colleges.

Hello Ramesh,
Please refer to this link to get more insights on the colleges and branches:
https://www.shiksha.com/b-tech/resources/mhcet-college-predictor
However, as per your rank, you will get some average college.