JEE Preparation

Hi Ankit,
The JEE main exam has already been conducted this year and the Advanced is scheduled to be held on 22 May 2016. For preparation tips, kindly refer the below link:
https://www.shiksha.com/jee-advanced-preparation-tips-exampage
https://www.shiksha.com/must-read-articles-for-jee-advanced-2016-article-12388-1
https://www.shiksha.com/10-tips-towards-your-jee-mains-advanced-preparation-article-11721-1
Hope it helps. Please feel free to revert.
Wish you luck.

DearAccording to me these institute better for jee preparation in Delhi -ncr.
I suggest some institute name as per ranking.
Vidyamandir Classes
Aakash IITJEE
Bansal Classes
Resonance
Career Point
FIITJEE
Pie Education
Narayana
Brilliant Tuorials

If you want to go for IIT than start being irregular in school or take on a dummy school as preparations for JEE will automatically do for your school studies.

Physics- h.c verma(mains) , irodov(advance)
Chemistry- o.p tondon (organic)
P.bahadur(physical)
INOrganic-read only NCERT ,solve questions from other books like prabhatt kumar or (previous year questions adds extra marks to jee)
Maths - r.s agarwal for boards, atihant series for mains+advance , TMH only for advance.
Must follow advice - solve large no. of problems for board and mains before going for TMH.

hello
I'm also resoNITE form kota study centre
If you want your jee preparation I suggest you that you only focus on your study .
Preparation is not depend where r u its only depend what you want , what you think about it.

prepare your 11 and 12 sllaybus .

To become astronaut you will have to become a Pilot or Flight Engineer. Opportunities to become Astronaut are very few ( you can count them on fingers). In India astronauts were inducted from Fighter branch of Indian Air Force. I will recommend that complete Aeronautical Engineering degree and learn to fly. You can then apply to organisations such as NASA to fulfill your dream.

when we prepare for JEE we also get prepared for all other entrance exams. so you get prepared for NID by JEE

allen or resonance or vibrant all threes are good

for jee main you have prepare just your 11 and 12 class pcm ncert books and for jee adv there some additional topic which are not included in ncert books so you have to first check the syllabus and prepare for that.
all the best.