Hello Jalagam vaishnava krishna

Rank depends upon the cutoff trends which changes every year according to the difficulty level of the paper and number of students appeared for the exam, no of seats available in the college, no of students appearing for the counselling, demand of the college etc.

Kindly mention the name of the exam for which you were asking these. Assuming you asked it for JEE Mains.

Belonging to SC category if you will score marks around 180+ then surely your category rank would be around 1000. To get rank under 1000 in SC quota you rank in general category should be less than 10000.

Hope it helps you.