In a bowl, mix together besan, rice flour, red chilly powder, cumin, ajwain and salt.
Add enough water to make a thick batter.
Add in chopped onions and grated carrots and add more water if needed to make a spreadable batter.
Heat tawa, take ladle full of batter and spread into a thin pancake.
Drizzle oil on the sides and cook until the bottom is browned.
Flip the pancake and drizzle more oil.
Cook on medium to low flame until browned and crisp.
Serve it hot out of tawa.