hello subodh!!

with 63 marks in jee main and belonging to ST category,

your percentile in jee main would be between 82-84 

and your rank would be between 149170 - 169170.

please see the following link to predict :

https://engineering.careers360.com/jee-main-rank-predictor

thank you

Your predicted percentile will be 80.61

Your Predicted All India Rank is 217325

As per your score and previous year cutoff, the colleges you get are:-

DTU Delhi

Netaji Shubhas institute of technology,Delhi

To know more about your chances of getting other colleges check out the college predictor link below:

https://engineering.careers360.com/jee-main-college-predictor 

To predict your rank check out this college predictor rank link below:

https://engineering.careers360.com/articles/jee-main-rank-predictor