Dear,

Unfortunately, one have got limited scope to join armed forces after finishing graduation in physiotherapy.

For Army/ Navy/ IAF: You will have to write CDSE. But it will be a SSC i.e. Short service commission and it will not be a medical cadre. As of now army doesn't have medical entry for physiotherapist. Although army does induct physiotherapist on contractual basis for their sportsmen. So, you always have that option to associate yourself with Indian army.

For Para-military forces: You have to qualify CAPF written and interview. You will be allotted a service of your choice (out of BSF, CISF, ITBP, CRPF, SSB) as per your final score. Also, you can also choose to be a part of prestigious IPS cadre after qualifying UPSC.

Hope this helps!