JEE

Every student have its own learning and grasping capacity, time table is a person specific thing. You are the best judge of your strengths and weaknesses and the amount of time you need to spend daily. Keeping that into consideration design the time table.

Akash Institute is the best coaching institute in Assam.
All the best.

You need to choose a good coaching center and have confidence in yourself. In the end, your efforts will matter. You can solve previous year papers and model papers.
All the best.

JEE Mains and Advanced exams will make you eligible to seek admission in IIT, IIST and PEC university. These are India's best institutes for aeronautical engineering. You can also appear for Manipal and Amity university exams to join aeronautical engineering degree courses.

This actually depends on whether you are comfortable with coaching or not. Because, there are many students taking coaching and getting good marks but there are also many students who opt self-study rather than joining the coaching. So, it depends upon your level of preparation and confidence.

Check the college predictor:
https://www.resonance.ac.in/reso/news/JEE-Main-Branch-Predictor.aspx

Visit the website jeemain.nic.in for the same.

You have to go through the entrance test conducted by NDRI or you have to go through by ICAR.

You may please refer to link for Ranking of all engineering colleges entrance examination wise:
https://www.shiksha.com/top-engineering-colleges-in-india-rankingpage-44-2-0-0-0
If you click on All exam pull down menu, you will able to have list of all engineering entrance examinations.

What is your rank?