The appeal was made at the fourth All-Tibetan Support Groups Conference held here.
The three-day conference, attended by over a 100 Indian supporters, was convened by the Core Group for Tibetan Cause, India.
The group will also campaign with political parties to invite the Nobel Peace laureate to address the Indian Parliament.
Delegates at the conference also decided to hold various protest programmes between September and October to mark the 50th anniversary of Chinese aggression against India.