Whomsover is coming out with 12th std results with a Science background are eligibile to enroll with an application. Then the Merit list will be prepared and it ll be posted to your residence or you can check with the college website. As said Preference will be RC and it will be, but also still if you have good marks scored then you too will be having a fair chance of getting in. More lights will be on Minority. Also the general category will be tough and you should definitely have a good merit.