If you want to seek medical treatment in the reputed and specialized hospitals of India, you can easily get a medical visa. Up to two attendants which must be blood relatives are allowed to accompany the applicant and also require Medical Attendant Visas having the same validity as the Medical Visa. The initial duration of the visa is for a year or the period of the treatment and will be valid for a maximum of 3 entries during the period of one year. The required documents are:
Copy of the passport you have in the PDF format
Digital passport photo in JPEG format
A letter from the hospital of India with its letterhead in PDF format
Proof of State Residency