Unlike mainstream comic strips, ‘grassroots’ comics are often linked to activist organizations, movements, and social change campaigns. Interestingly, in order to engage local populations, topics for the cartoons tend to be confined to local issues and feature the work of local artists.

The circulation and public posting of such comics is intended to encourage support for a particular social change campaign. The belief is that authentic, visual storytelling is an effective way to stimulate debate on a contentious local issue. 

As an activist campaigning tool, the use of ‘grassroots’ comics is a relatively new phenomenon. To date, such movements have been piloted in India, Pakistan, Nepal, Sri Lanka, Africa, Europe, Latin America, the Middle East, etc.

http://en.wikipedia.org/wiki/Grassroots_comics

http://www.worldcomicsindia.com/