Engineering Entrance Exam

Yes, you can, by the way correction process has already started. Go through the official website of the same.

Yes, you can, but only if you fulfill the eligibility criteria.

It may help sometime. It depends on the efforts put by the student.

If you are qualified for JEE Mains then you will have to fill the online form of JEE advance. JEE advance has two papers. Question pattern for JEE advance vary every year. If you have crossed cut-off of JEE advance then you are eligible for admission in IITs but depend on your rank. If your score is 130+ then you must get a seat. You will have to register yourself on the website of Josaa then you will have to fill the college list and branch for NITs, IIITs and government funded universities. Then you will be allotted a seat as per your rank. If you accept the seat then visit college with documentation and get admission.

JEE exams are just tricky. Just clarify your concepts and then try. You will solve most of the previous year's questions and in JEE advance you need to use many concepts in same questions.
To get a good NIT you must secure 170+ marks out of 360 and total marks vary in JEE advance but to acquire a seat score should be 130+. If questions are very difficult then 100+ is sufficient to get a seat.

Go through NCERT books and previous year's questions. Then you will get idea about the questions asked in the exams. Actually, JEE Mains questions are not hard. They are just tricky. For JEE Advance you may go through books like HCV for physics and such type of books.

It may or may not be possible. If you are getting NIT on the basis of JEE Mains then go for it. If you want to drop then do it at your own risk. If you want to drop then go to Kota else you might get depressed.

Yes, you can start preparing for IIT-JEE now. You need to keep your basic concepts clear. You should study from NCERT books for strengthening the basic concepts. Try as much application based problems as possible. Try to solve all the previous year's question papers. Take regular tests to check, it gives a check of your preparation.

Hi Jay,
Preparing for JEE starts with understanding the concepts that you are learning in the classes as well as on the effort you are doing to put the things that you have learned into practice.
All the best!

Hi Kumar,
It is not required to change your board for participating in JEE entrance examination.