To get admission in any of the IITs across India a candidate must acquire high rank in JEE Advance which consists of three subjects which are Physics, Mathematics and Chemistry. 

To get an opportunity for giving JEE Advance a candidate must first clear JEE Mains which also consists of Physics, Chemistry and Mathematics. JEE Mains is of 360 marks. For 2018 the cutoff for clearing JEE Mains was 74.

So prepare for JEE Mains and JEE Advance so that you can get admission in IIT Roorkee. 

All the best.