Dear Aspirant,

According to your percentile, you will not get any decent college. In today's time, college matters a lot and I suggest you choose your college with utmost care. Your rank will not fetch you a good government college, however, if you are interested in government college only then I suggest you should take a drop year and prepare again for JEE - 2020. 
Try to score above 90 percentile for decent colleges and around 94-94 percentile for NITs/IIITs.

Here are a few links to help you:

https://engineering.careers360.com/articles/how-prepare-for-jee-main

Hope this helps.

Thank You.