A Russian invitation letter is an essential document without which you cannot get any Visa.
The good news is that you can now apply for the Russian invitation letter online.
The process is very simple and easy-going.
Here is how you can apply for the Russian invitation letter online: The invitation letter is issued by the Russian tour operator Russia support.
It is authorized by the Federal Tourism Agency of the Russian Federation of the Ministry of Economic Development, respectively.
You can visit the website and get an invitation letter to the country for a tourist visa in a PDF format.