Hey Ashwin,

The KEAM selection process for B.Arch stands something like this:

50% wieghtage to NATA  scores+50% weightage to qualifying exam marks.

Based upon your rank you are eligible for many government colleges.Students of Kerala also get the advantage of domicile state reservationss.For SC/ST candidates the cutoff marks is 40%.However the cutoff varies accordingly every year for KEAM.You have a good rank and also your caste reservation will help you to get good government colleges.

Check out this link for more-

https://www.careers360.com/exams/keam

Thank you.