Engineering Entrance Exam

For practice purpose, you may go for other books too, as they've vast number of questions and exercises. You can also check the previous question papers.
All the best.

No, you would not be able to surpass the cutoff (which is minimum of 300 out of 450) if you only prepare for the 12th syllabus. The 11th syllabus is as important as the 12th and carries equal weightage (might vary a little bit). It is advised that you prepare both the 11th as well as 12th syllabus.

VIT is in top 20 engineering colleges of India. If you are able to get VIT after dropping a year then its worth a try option.

You should read your 11th and 12th NCERT textbooks perfectly and then go for HC Sharma for physics.

Hello Pranjal,
Don't drop a year. First, appear for other state level entrance examinations like OJEE, EAMCET, COMEDK, etc. You may get a good option in those exams. If you still don't get good score then you can drop a year and prepare. You can join a good engineering coaching institute as well. Rem

If you are from general category then you must have 75% in 12th to appear for JEE Advanced.

Your 11th and 12th related chapters are important for JEE mains.

Yes, you have a chance if your rank is good but not a desired branch.

If you cleared IIT-Mains, then you are eligible to get admission in any decent engineering college. A score around 190-220 is a good score to get into NITs. You can try to score good in IIT-JEE Mains, so that you can fight for IITs.

You should concentrate more on chemistry and physics. You need to focus on the last 5 chapters of class 11th and 12th.
All the best.