I am British citizen temporarily in Thailand and wish to visit India for a 6 month period, but would like a multiple entry visa as I want to visit some neighbouring countries such as Sri Lanka and may need to travel to Europe for other matters for a week.
The main purpose of my visit is to travel to the sacred sites of India on pilgrimage and also to visit my guru.
How can I ensure a 6 month or 12 month multiple entry tourist visa? What documents do you need?