What is the validity of the Indian tourist visa?
The India single-entry tourist visa is valid for 3 months.
Double-entry can be issued for those who travel to Nepal or Bhutan based on the travel itinerary. The proof such as tickets, hotel reservation should be submitted.
Multi-entry for up to 1 year is available as long as the applicant must present flight reservation showing visit to neighbouring countries or the 2nd reservation for a later date if intending to travel to India again within the validity of your visa. The applicant can also receive this visa in case they travelled to India 3-4 times a year spanning the last 3 years or more.
Make sure you keep this in mind and check your visa's validity. You may face problems at the border in case your visa isn't valid anymore.