For the admission in sidhha for the BSMS course the candidte must have passed class 12 with the PCB and the candidate should have studied in tamil medium upto class 10/ class 12 or studied tamil as a subject. Now the cutoff marks depend upon the number of candidates registering for the BSMS course and the marks obtained in the entrance. Then the merit list will be prepared and then you will be able to know the possibility of the admission there. So go for the counselling rounds and wait for the merit list.