Wash and soak chickpeas atleast for 7..8 hours or overnight
Then boil adding 1tsp salt and 1 cup water
Meanwhile take all the three flours in a plate
Knead the dough with lukewarm water adding remaining salt and boiled and mashed bananas
Cover it and keep aside
Now Heat oil in a pan
Add chopped onion,capsicum,carrot julians and cabbage
Saute well for 3..4 minutes
Add chopped tomatoes and green chillies
Add boiled chickpeas and red beans
Add chilli powder and garam masala powder and lime juice
Mix well
Turn off the flame and add chopped coriander leaves
Now make a small ball out of dough to make chapati
Roll it and roast on tava from both sides
Fill the chickpeas filling inside each chapati and fold like tacos
Spread sour cream over it
Serve with more sour cream