Hello,

Being a SC candidate to get into good colleges you need to score over 60 percentile. The more your percentile will be, the more chance you will get for seats in top colleges. You can check the cut off rank of different top colleges from the link below

https://engineering.careers360.com/articles/jee-main-cutoff-for-b-arch-b-planning

Also, to know your best admission possibilities, use the college predictor tool from the link below

https://engineering.careers360.com/jee-main-architecture-college-predictor?icn=QnA&ici=qna_answer

good luck!