Hi

With 20576 sc rank,

I am extremely sorry to tell , you have a low chance in NIT Raipur even under home state quota

For example,

In 6th round of josaa counselling 2020, closing rank for gender-neutral  for sc category was 18797 sc rank    under home state in NIT Raipur and it was for Bio Medical Engineering (4 Years, Bachelor of Technology)

You can check the same at

https://josaa.nic.in/Result/Result/currentorcr.aspx

This  prediction is on the basis of past year cut off data but  cut closing rank changes every year depending upon  number of candidates that write jee main examination, difficulty level of the question paper for different shifts of jee main etc so

To have a personalised report on your chances of getting a college you can go through our college predictor, it will give you complete list of colleges which you can get on the basis of the category you belong to,  your home state, your gender etc, the link for  jee main college predictor is provided below

https://engineering.careers360.com/jee-main-college-predictor?icn=QnA&ici=qna_answer

To improve your score in remaining sessions of JEE main you should focus on your preparation go through previous year question papers ,mock test papers and to help you in your preparation we have jee main knockout out for you, for which  is provided below, target at least around 95 percentile to get into NIT Bhopal

https://learn.careers360.com/knockout-jee-main

Thankyou