Ingredients :-
1. Tur dal   – 1/2 cup
2 . Lady’s finger (bhend )  –  12 to 15
3. Tomatoes   –  3
4. Tamarind  – small piece
To roast in little oil
1. Grated coconut   – 1 tbsp
2. Coriander seeds   – 2 tsp
3. Urad dal  – 1 tsp
4. Jeera  –  1/2 tsp
5. Methi  /fenugreek  – 1/4 tsp
6. Pepper corns – 5 to 7
7. Red chillies  –  10 to 12
8. Hing   – 1/2 tsp
Procedure:-

• Pressure cook tur dal
• Cook chopped bhindies and tomatoes in the dal adding salt..
• Roast together all the ingredients  given under the list adding around 1 tsp of oil .
• Fry till the coconut becomes brown and the nice aroma fills your kitchen…
• Grind this roasted ingredients along with tamarind adding sufficient water to a smooth paste.
• Add this to the cooked bhindies ….
• Let the kolmbo boil well….& then switch off flame ..
• Crush some handful of curry leaves on your palms and spread over the kolmbo…
• Make a seasoning of mustard and one or two broken red chillies and pour it over the kolmbo..
• A lip smacking Kolombo is  ready ….
• Enjoy with steaming rice and do not forget to crush one or two pappads in that….Almost a heavenly combo…….

Note
This recipe does  not require onion ….
Same recipe can be applied to mixed vegetables too….