Dear Student,
There's nothing you need to worry about it. Getting 50 marks in class 12th is no compulsion for getting admission in any course in any college across India you just need to fulfill the basic eligibility criteria of having minimum of 50% in class 12th, there's also a relief of 5% in it for Schedule Caste and Schedule Tribes. Other than that you just need to have the minimum passing marks as per your board in English in class 12th which is most probably 33%. Hope you have got this much. Best of luck.
Hope this might help you.

Hello,
U should get 33% marks in every subject in order to be able to pass in class 12.Below 50 till 33 u are having not a problem if u just want to pass but will effect ur percentage.