If you are planning on applying for a tourist visa to Thailand as mentioned you would need to provide your paperwork and photos to VFS. It is also important to check the checklist which has some variations depending on which zone you would be applying through. The Thai embassy is in Delhi and has 3 other consulate offices in Mumbai, Chennai and Kolkatta. So if you're going to be in Delhi then VFS in Delhi will send your application to the embassy office in Delhi. Same would apply if you're in other cities in Northern Indian. Mumbai, Chennai and Kolkatta cover west, south and east respectively. This information is available on the vfs website. A 3 month tourist visa is single entry and 6 month tourist visa is multiple entry. These are the only options when applying in India for tourist visa unless you have the visa on arrival option. As mentioned it is important to make sure you have all the documents as per the checklist as VFS staff can be very dogmatic and inflexible regarding receiving the application even though they don't process the visa.