How to make masala dosa in India, in Delhi

From the archive record

Indian man makes masala dosa to serve customers at National Street food festival in Delhi. Masala dosa recipe is made from fermented rice urad dal batter and mashed potatoes. The only complication to make this is you have to soak them whole night and allow the batter to ferment in a humid place. If you living in very cold countries the batter might take a longer time than usual. You could place the batter in oven with the light on or at any warm place or in sunlight. Source: http://www.indianfoodforever.com/indian-breakfast/plain-dosa.html This footage is part of the professionally-shot broadcast stock footage archive of Wilderness Films India Ltd., the largest collection of HD imagery from South Asia. The collection comprises of 150, 000+ hours of high quality broadcast imagery, mostly s