Hello Ram, Josaa has a standard medical certificate format for such cases of physically handicap candidates. You can find the pdf in this link: https://josaa.nic.in/webinfocms/Public/View.aspx?page=73

also check out this link for further info on the matter: https://josaa.nic.in/webinfocms/Handler/FileHandler.ashx?i=File&ii=157&iii=Y

make sure along with the duly filled certificate you also carry your PwD certificate issued by the state govt/ward of your home state.