hello aspirant,

looking at the previous year JEE mains Cutoff for SC category in Civil Engineering, in order to get Civil Engineering in top NIT's of india, you have to score at least 120+ marks in JEE mains to get your preferred branch in Top colleges and you have to score 90+ percentile score in jee mains to get admissions in Good colleges in reputed branches.

Further, please note that the above mentioned prediction of marks and percentile score is based on the previous year JEE mains cutoff which may vary this year as the JEE mains cutoff rank bound to get change every year.

Further, to know more about the JEE mains Cutoff for previous years, you can follow the below mentioned link to know more about it : https://engineering.careers360.com/articles/jee-main-cutoff

Further, to know more about your chances ibn other colleges through JEE mains, you can check the JEE college predictor tool to know your chances :

I hope that this will help.