Hii gangu 

I would like to say before in the application only you should select the EWS category now nothing can't be changed..along with that with the ravk of 60k plus getting NITs and iit are damm difficult where as i would suggest you would get the collleges accepting the JEE main score the link below provided as for college predictor

https://engineering.careers360.com/jee-main-college-predictor?utm_source=google-search&utm_medium=paid&utm_campaign=jeemain-clgpd