Dharmacharya Seerattan founded the Shri Devi Mandir in Jamaica, Queens in 1988 with a Global Humanitarian Foundation to serve globally. He worked with charitable organizations, including the BAPS Care International where in 2005 he built a well in a poor village in India for people to have drinking water and donated to the Tsunami, Gujrat and Pakistan Earthquake, Guyana Flood, Hurricane Katrina, Haiti Earthquake, Superstorm Sandy and Sankara Eye Foundation.

He founded the Shri Devi Mandir Global Humanitarian Foundation Inc., which built a home for a disabled mother in Guyana, delivered food hampers, purchased eyeglasses for the less fortunate, stablished computer centers and sponsored scholarships for students. He donated funding to Queens Hospital Center for the Department of Cardiology and also supported Guyana with over 16,000 face masks, 2,500 hampers of food and 2,000 kids meals during COVID-19. He was awarded many citations for his humanitarian actions.