JEE Main

Hello Rahul,
You are still in 11th so you have a lot of time on your hands. CBSE syllabus for 12th is the syllabus for JEE Mains. Be thorough in concepts of all subjects. Try solving numerals. Have faith in yourself.
If possible, please do join any coaching class nearer to your home. Here, you will learn short cuts in answering questions quickly which will save your time. In addition, mock tests will be administered which will help you a lot.
Best wishes!

Hello Arman,
With such limited time available, I would advise you to join a crash course of a coaching institute nearby your home. This will help you a lot. They will teach you tricks of shortcuts in answering questions. All subjects are covered in full in the exam. There is no special weightage for any question or for any chapter in any subject.
Best wishes!

Online tutorials and solving online demo papers will prove to be helpful for you.

Hello Roushan,
Eligibility to appear for JEE Mains is obtaining 75 % in 12th or equivalent. Eligibility to appear for JEE Advanced is to score more than cutoff announced at the time if declaration of results of JEE Mains.
I hope I have been able to satisfy your query.
Best wishes.

Hello Prajwal,
The word cut-off is used to indicate marks for different categories below which a student can not appear for JEE Advanced.
Cutoffs are not for any particular college.
However if you are meaning opening and closing rank then it's a different story. I am attaching a link giving data of previous year. This so since results of JEE Mains and cutoffs are announced simultaneously. Based on this predictor software of many websites will become active. You have to wait till then.
http://engg.entrancecorner.com/nits-iiits-iits-gftis-opening-closing-rank/amp/
Best wishes.

Hello Jonathan,
Kindly, understand that you have to do well in 12th. In fact you should get 75% or more. So, do not skip studies of 12th. Yes, it's a good idea to take drop of 1 year. Give yourself this year to prepare for your future. In our life one year is actually nothing. But, do remember this year is for the preparation.

AIEEE has been replaced by JEE Main in 2013:
In April 2013, CBSE introduced JEE Main and JEE Advanced which had replaced AIEEE and IIT JEE respectively. Now, if you are a 2017 aspirant and seeking admission to engineering and architecture programme then you need to apply for JEE Main 2017 and JEE Advanced 2017 respectively.

FITJEE is one of the best coaching centers to crack IIT.

Dear
As per your query for B.tech-Aerospace the eligibility:
10+2 (Min 55%) with PCM & English plus JEE Mains score is 30 but that is as per last year's cut-off. For this year's JEE Mains cut-off, you can contact Admission help line in the month of May 2017 through your NIOS 12th certificate. You can apply for Amity School of Engineering which is affiliated to CBSEJEE.
All the best.

Yes, you need to opt for PCM in class 12th.