Engineering Entrance Exam

Yes, you can go for it.

If you have 61% marks in 12th you can easily get admission in colleges like LPU and other private colleges by giving the entrance exam of the colleges like I'll be honest and you can I will a scholarship amount also based on your performance in the LPUNEST exam.

Hello Rupendra,
As per your rank your chances are nil for getting admission in any top govt. and private colleges, so try via management quota if you want to be in top colleges, however you may apply to some private colleges in Noida like Galgotia's, NIET, GNIOT and in Bhopal like LNCT, Bansal, TIT, etc.

Hello,
Admission in IISC, Bangalore is done via 3 ways.
1. You need to crack KVPY.
2. Minimum 60% of marks in JEE Mains.
3. Minimum 60% of marks in JEE Advanced.
If you find yourself in any of the 3 categories you have fare chances of getting admission there.

Hello,
As per your marks your chances are nil for getting admission there, however check here to know more:
https://www.shiksha.com/b-tech/resources/mhcet-college-predictor

You can go for the PGCET counselling and if you get the allotment you can get the seat or else you can go for direct admission if you have a minimum of 50% (45% in case of SC/ST candidates) in your graduation with all the subjects cleared.

Admissions in NITs is based on the JEE Mains score.

Yes, there are various colleges in which you can apply for M.Tech without GATE qualification or something like that. I can give you some names like Vivekananda Global University, JECRC University, etc. from Jaipur.

No, if you are doing diploma in mechanical engineering you cannot apply for IIT or NIT because it has stopped taking any lateral entry admission and if you have done your 12th then you can surely apply for the JEE mains advanced.

To get an AIR of 25k you have to get marks between 160-180 and it is also based on reservation.