Hello, My Name is Neeraj. i am pursuing B.S.c (biology). can i go in IT field for higher studies. if yes please tell what to do?

Hello my name is Neeraj. i am pursuing B.Sc. (Biology) Final year. I tried PMTs for 3 years but Failed, but now i am interested in computer science so i want to go in that field that's why i want to know can i go for higher studies after B.Sc. if yes then please tell me what to do? please i am watg