If you are coming to India for Surrogacy or for IVF, you need to apply at the Indian embassy / Consulate for a Medical Visa. Your partner / attendant coming with you can apply under the category of Medical Attendant Visa.
This is a multi entry visa which allows you to stay in India for upto 6 months for medical purpose. This visa also requires you to register at the FRRO office [Foreigner’s Regional Registration Office] with 14 days of your arrival in India. These are nodal offices for foreigner’s registration in all major cities / districts of India.
You will need a medical visa invitation letter from us to apply for medical visa to India. Send us an email with the passport numbers and full name as on passport for yourself and well as travelling partner to issue you a medical visa invitation letter. You can send us a mail on firstname.lastname@example.org