IIT

No, Indian Institute Of Technologies do not offer lateral entry. But, many good colleges offer lateral entry .You can take admission in these colleges after your Diploma.

Yes of course, it is one of the oldest engineering colleges in India. while many NITs are newly established and don't even has proper faculties and campus.

If you are in top 20 percentile of your board then you are eligible for JEE otherwise you can give improvement exam next year. If you think that you can crack JEE next year then you should drop a year.

A rank under top 8000 is required to get into IITs
There are total 11000 seat across 23 IITs, in which they are to be filled up with general students and category students.

Yes, JSS Academy of technical education is one of the top private colleges under UPTU. Placement is good as it is around 3 LPA. Crowd is mixed type. Overall, it's a good place to do B.Tech.

Greetings from Shiksha.
Yes You can crack JEE Mains by self study. You should have good and clear concepts of the topics in Physics Chemistry and Mathematics, and should practice more and more problems, then you can able to score good in JEE Mains.

Here is a link that will let you know the number of seats for SC category in each college and for a particular branch:
https://www.shiksha.com/b-tech/articles/iit-seat-allocation-2016-course-categorywise-blogId-6292

You need to score 70+ in JEE Advanced to get admission in IITs.
If you score more than 100, then you will get upper IITs.
And, a score of 150+ will fetch you admission in you.

Hello Hardhik,
The JEE Advanced scores are being accepted by all IITs and the other institutions like IISc, IIST etc.

Hello Vijay,
For admission into IITs, your JEE Advanced marks and ranks are only considered. So, you cannot get IITs with JEE main marks. With JEE main scores you can get only NITs, IIITs and GFTIs.
All the best.