suchitra The procedure is very simple... You will require max 2 sessions with a psychiatrist (depends)...then an online test conducted by a clinical psychologist (just to make sure you are not under the influence of any substances) and then the psychiatrist will give u the certificate.
If you are willing to pursue i can get you connected to a well known psychiatrist in this field who also happens to be a psycho therapist. She will require just one session with you and she is available online.