GNM

Hello Sonali, Nursing college in AFMC gives admission based on 12th. Any other course that you may have done has no relevance in admission process. I am attaching a link that will give you all the required information. https://www.afmc.nic.in/Departments/CollegeofNursing/homepage.html
Best wishes to you.

Yes, you are eligible for physician assistant course, but your course level should be graduation.Duration of 3 years and intermediate should be of 50 percent of marks.

BSc (Hons) Nursing is better than GNM as GNM is Diploma only.For promotion, BSc is preferred and get degree allowances too in government hospitals. Apart from this, one has to do two years post BSc. After GNM, then only they are equivalent to BSc.