Hii Subhash.According to me this year paper was relatively quite easy.So I think for SC it would be 65.This is only an estimation.Hope this helps you.If you have any doubt please feel free to ask

Hi Midasala,

JAB (Joint Admission Board) will announce the qualifying cutoff of JEE Main for JEE Advanced 2018 on April 30.

Apart from the qualifying cutoff for JEE Advanced 2018, JAB will release JEE Main 2018 cutoff for admission to National Institutes of Technology (NITs), Indian Institutes of Information Technology (IIITs) and Government Funded Technical Institutes (GFTIs).

You can get JEE main expected cutoff by Coaching centres, JEE main cut-off trends (2013-2017) and cut-offs for NITs and IIITs from the given Link: https://engineering.careers360.com/articles/jee-main-cutoff

Hope this helps!

Good Luck!