IIT

To get into IITs. 12th standard marks for SC/ ST and PwD candidates, the aggregate marks should be at least 65%. It will be difficult for you to get into IITs. You may look for other private and state engineering colleges.

Yes, definitely, everyone can do study from IIT but its tuition fee is high about 1.17 lacs per semester. Overall, the tuition fee for a year will be approximately 2.35 lac rupees. But there may be a concession of 70% tuition fee if your family income is less than 4.5 lacs. So, it's good for you dear.
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BITS, Mesra, Ranchi
School of Planning & ArchitectureBhopal
School of Planning & Architecture Delhi
Shri Mata Vaishno Devi University Jammu & Kashmir
School of Planning & Architecture Vijayawada
Chandigarh college of ArchitectureChandigarh
SRM UniversityChennai
Punjab Technical UniversityPatna
PM College of EngineeringSonepat
Himgiri Zee UniversityDehradun.

https://www.shiksha.com/b-tech/resources/jee-mains-college-predictor?utm_source=connect&utm_medium=CR_JEECP&utm_campaign=7476690
Just follow the link.

https://www.shiksha.com/b-tech/resources/jee-mains-college-predictor?utm_source=connect&utm_medium=CR_JEECP&utm_campaign=7476690
Just Follow the Link. Hope this helps, Best of Luck.

Marks needed to qualify is called cutoff marks. Every year it changes. It is not fixed. This year, the cutoff for ST category is 29. So, for getting eligible for JEE advanced student need to score minimum of 29 number. And, getting the admission through JEE main only then student need to score minimum of 90 above. Also, for getting admission in IIT you need to qualify the JEE Advanced. JEE Advanced have different cutoff marks. So you need to qualify with high marks in JEE Advanced for getting admission in IIT.

You want the easiest book that too for IIT preparation. HC Verma is the best book. Nothing can replace that. Don't try for the easiest one. You can then go for DC Pandey. But, if you want to crack IIT practice as complex as you can.

In case you have missed the cutoff required for JEE Advanced as JoSSA counselling is there for the rescue. JoSSA 2018, centralized counselling for JEE Main and Advanced to get admissions to top engineering colleges. The registrations process for JoSAA 2018 will be open tentatively from the second week of June 2018. So, all the qualified candidates need to keep a tab on that.

2018 MHRD ranking of engineering colleges in India are mentioned below. This list includes the top 100 engineering institutes in India and includes both IIT's and NITs, and is for reference purposes only.
https://www.shiksha.com/b-tech/articles/2018-mhrd-ranking-of-engineering-colleges-in-india-blogId-15711

In NEET, the physics questions are among the ones that every one solves while in 12th standard. JEE physics is of a bit higher level because the paper is set for upcoming engineers who need to know extra. NEET paper contains difficult questions of physics and calculus trigonometry also, but the level of difficulty is not like that of JEE.