Clean and trim flat beans.
Cut onion, tomato and capsicum in long strips.
Heat 1 tablespoon of mustard oil in a non stick pan.
Add all the ingredients except besan to the pan and stir nicely.
Cover and cook in medium heat until vegetables are cooked completely.
It will take approximately 10 to 15 minutes to cook the vegetables.
Mix together besan and 1/2 cup of water.
Add the mixture to the pan.
Stir nicely to combine well.
Add 1/2 tablespoon of mustard oil and fry for 5-6 minutes to cook the besan well.
Adjust the seasoning and remove from heat.
Serve with chapati or steam rice.
