Hey Shubham,

IF you have taken your boards exam i.e,class 12th exams this year (2020) then you shouldn't worry about  your percentage of class 12th because as per the govt.,Seeing the current situation and this pandemic class 12th students have been given a relaxation regarding their minimum eligibility for NIT,IIITS,GGTIS and IITS i.e,earlier the minimum eligibility criteria was 75% in class 12th for students but this year i.e,2020 the students have been given the relaxation.they just need to pass their class 12th without any backlogs/compartments.

Also your jee mains score and jee advanced rank is literally good.and you have fair chances of getting good govt colleges with your desired branch.

You can predict your colleges on the basis of your jee mains rank and jee advanced rank using our college predictor tool,the links are mentioned below respectively-

Hope it helps.

Good luck.