Hello Riya,

Congratulations ! You have performed well.

Since you have achieved good Rank, you can get Top IITs in SC Category Seat. Namely IIT INDORE, IIT ROORKEE, IIT JODHPUR, IIT PATNA these IITs you can get easily for your Masters in Science specialized in  Physics though IIT JAM 2018. You can get detail about open and closing rank for various IITs from following link-

https://images.careers360.mobi/sites/default/files/JAM-2017-opening-closing-rank.pdf

All the Best.

Thanks For Contacting Career360 .