Sampreeti bishwas, if you want to get admission in school of planning and architecture (spa) Delhi, then your rank in SC category must be under 52 for bachelor in architecture. Or you want to pursue bachelor in planning from spa then your rank should also be under 102.

You can check your college also from this link.

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

Acc to previous years cut off analysis cut off rank for spa delhi from ST category is between 60-100 so although you have less chances of getting spa if we look at previous years cut off rank, but nothing can be predicted cut off ranks are a subject to particular year's highest score how many seats are available before your rank etc 

also for anaysis regarding which colleges you can get you can use the linkhttps://engineering.careers360.com/jee-main-architecture-college-predictor?icn=JEE_Main_Paper_2_clgpd&ici=JEE_Main_article_contmap