JEE Main

You must study for 5 to 6 hours everyday. You should not mug up the things rather understand the concept behind it. It will you to understand the numerical portion in physics and chemistry.
For maths, you should try to solve the problems in as much few steps you can. Then only you will be able to score better.

Hi Kshitij,
You may check all details for 2017 here, while the application filling dates are almost done, try your luck:
https://www.shiksha.com/articles/engineering-entrance-exams-in-india-blogId-5645

How much marks you are expecting in this year? I may tell you whether it will be good to drop one year only after that.

If it is your first try, you may try for once more.

The qualifying marks in 12th for JEE Mains is 75%. If you do not get it, there's no use of giving JEE Mains.

Don't loose hope, my friend. Some students forget all the concepts during exams so just chill, not everyone is getting admission in IITs. You should prepare for other college's entrance exams.
All the best!

Don't go on assumptions, just match with the answer key and if right then prepare for JEE Advanced because previous year's cut-off for SC category is 52.

Your score is good for some of the government colleges, go ahead for Advanced.

No, without clearing these entrance exams, you are not eligible for any government colleges according to the new education policy.