Hello Dear,

According to you, you are belonging to the OBC NCL category then you need 72.89 percentile or minimum of 15.75 % aggregate marks in JEE Advanced to get admission to IIT(Indian Institute Of Technology) Kanpur. First of all,  you have passed class 12 with a minimum aggregate of 65% and qualify for the JEE Main entrance exam within the top 20 percentile.

You can also predict your JEE main rank by this link

To more information about IIT Kanpur :-

IIT Kanpur: Admission 2021, Courses, Fee, Cutoff, Ranking, Placements & Scholarship (careers360.com)

Hope this information helps you...

Best of luck :)