Regarding cut off.. All streams like arts medicine are taken as same.. Because in medical courses getting above 60 percent is very tough.. How they will take this
Sorry to say but your question is not properly clear. Actually arts , science and commerce are difference stream and all are valuable. Those are interested in any one going for it. Like anyone interested in science go for it or anyone interested in arts go for it.
Now arts students can studying a lot things and science students also studying a lot. But if you compare medicine study with arts then it's totally wrong. Arts students can studying only some theory portion but a medical student can study whole of human physiology. Infact they have to study patients case, they have to doing practical. So both are different. Don't compare arts with medicine.
All the best.