Hey Abhishek Barman....

To get into the IIT Ropar Mtech CSE, a candidate of general category must have a minimum of 6 to 8000 rank. Even though you are from SC category your rank is of 12000 and it is too much difficult for you getting into this course. If you want to know which colleges you will be expecting based on your marks do visit the below link : 

https://engineering.careers360.com/gate-college-predictor