Hello , 

As your query is you want to take admission in college and you need medical fitness certificate, I would like to tell you that there is no specific parameters or format for medical certificate, all you have to do is to visit to doctor and tell them that you need to take admission and for that purpose a medical certificate is required and they will only do your examination that whether you had any disease earlier or you have something in current and your medical history and nothing else and whether you are physically fit or not, this is all what it is in the format and all the doctors know it very well. So you can approach a doctor and they will let you know there is no format you can ask for. And if there would be any specification required you can contact with your college in which you want to take admission and they might tell you that is there any other specification but yes all is that you visited doctor and their help you. 

I hope your query is solved.

Thank you.