Add besan, ajwain, turmeric and salt to a mixing bowl. Mix everything well.
Add ginger, tomatoes, onions, coriander leaves and chilies. Pour enough water and make a batter of thick but pourable consistency. If needed add more water as needed.
Heat a pan and grease it lightly with few drops of oil.
Allow it to turn hot and reduce the flame to medium.
Mix the batter well from the bottom. Take a ladle of batter and pour it in the center. Quickly spread it to a round cheela.
Drizzle some oil around the edges and the center.
Allow to cook until the edges leave the pan. Flip it to the other side.
Press down the edges with a spatula. Fry until it is cooked completely and gets golden spots.
Remove to a serving plate. To make the next one ensure the pan is hot enough and not very hot otherwise they will brown too quickly.
Serve besan cheela with some tea or chutney.