If I admit for B.Sc. Nurshing. Then can I get a government job because I am Male student.

Yes, there is no gender issue in getting a government job for males in the nursing field. I have done B.Sc (Hons) in nursing, I did my practicals at Safdarjung Hospital. There we worked under the guidance of male staff too who worked there as a government employee. So, yes go for it. You will get a