Heyy Kavita....

Can you be please a bit more specific regarding which exam you are telling about and in which exam your son scored 56%. If you are telling about the JEE MAINS , then for the final cutoff list you would need to wait till the result of the second exam thats till April end as the result will be calculated by considering best of two.

Still you can use below college predictor by carrers360:

https://engineering.careers360.com/jee-main-college-predictor