With a JAM Physics rank of 525 , you have fair chances for:

i-PhD Programs

• IISER Mohali, Bhopal, Thiruvananthapuram – possible calls

• IISc – less likely, but you can apply

• NISER/CEBS – may consider JAM + interview

IIT MSc Physics Admissions

• Possible in IIT Gandhinagar, Jodhpur, Bhilai, Palakkad, Tirupati, Dhanbad

• Older IITs are unlikely at this rank

Apply widely and prepare for interviews.

IIT-JAM (https://www.quora.com/Is-admission-to-any-IISER-possible-with-just-an-IIT-JAM-rank-and-no-interview)