IIT

It's all on your interests. According to your marks, you can easily pursue B.Tech in IPU. But, if you have full faith that you can crack the next year IIT entrance exams, then only go for one year drop. Otherwise, if you have doubt then do not take a risk of one year. My suggestion is don't go for one year drop, pursue B.Tech in USIT, and then score good in college. All the very best.

For IITs, you must be really consistent with your studies. You may join a coaching institute (VMC of FIT-JEE) and prepare simultaneously with your board exams. But if you wish to prepare on your own, gather GOOD study material (buy coaching institute modules), but do not collect too much material, only get what is required. First get your concepts crystal clear and then move on to numericals. Solve as much questions as you can. Practice daily. Give more time to mathematics and then physics. Word hard and forget everything. Good luck!

Choose Science stream in class 11th with mathematics as a compulsory subject. You may opt for computer Science as an additional subject. Good luck!

https://www.shiksha.com/b-tech/resources/jee-mains-college-predictor
Please go through the link that I am sharing here to know about the same.
Good luck.

It think there is no chance.

No, you will not get IIT's with the rank of 33460 in JEE Mains but you can definitely get admission in best colleges in your city as well as the state. Best of luck for your future and if any query feel free to ask.

You have good marks in JEE. You can get government colleges of your state it's better to try once in the state-level counselling. Taking drop is not a good option because to get NIT, you must have 75 percentage in 12th so if you take a drop, then also you will not get any NIT software scoring good marks so if you take a drop, you should also try for improvement in board exam, then it will be beneficial.

IIT tag is surely worth a year but only if you are willing to sacrifice most of the things. Hard work always pays. But on the other hand, if you feel that NIT is worth it, then you should give it a try.

Yes, you can get any of private college you want to go with. Because in private college, you can take admission without any entrance exam. But JEE marks valid only for one year. So, you only can join private college.
Good luck.

Hello, Shaily. First of all, good luck. I hope you will do well in near future. For physics you can consider these books:
1-Engage (most important)- Independent edition
2-TMH-As a whole worthy
3-ML Khanna-Coordinate Geometry
4-Admit M Agrawal -Differential & Integral Calculus only
I am not mentioning books like Irodov and Krotov because these books are full of heavy subjective questions which can be learnt easily by solving previous years IIT questions.