Hi dear,
Sice you belong from home state as well as female quota. Your ews category rank should be around 24k that means your general rank should be around 200000. For getting a rank under 200000 your percentile should be around 80. You can check cutoff rank of all branches
https://www.google.co.in/url?q=https://engineering.careers360.com/articles/jee-main-cutoff-for-nit-silchar&sa=U&ved=2ahUKEwjI-Oyt6aXnAhUVg-YKHewXANIQFjABegQICRAB&usg=AOvVaw0W2BjLhncSQNojTnisN4sb
Hope it helps.
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