Warm up 3 tsp of oil in a kadai /pan and add 1/2 tsp mustard seeds and wait for it to splutter.
Next, add 1 tsp cumin and saute for a few seconds until it becomes crisp.
Now add 1/2 Tsp Asafoetida/Hing to it and give it a good mix and then add 3 large green chilli roughly chopped. Mix well.
Add vertically sliced raw mango and mix well. cook for a few seconds before adding masalas.
Next, add 1 tsp red chilli powder, 1/2 tsp salt, and 1/2 tsp turmeric powder. Mix well and cook again for a few seconds so that masalas are coated well.
Now add a cup of and mix it well with the mixture. Close and cook until the raw mango softens.
Finally,add 1/8 cup jaggery and give it a good mix before cooking it to a thick paste like consistency.
Once the sauce thickens, switch off the flame and serve it hot or cool it down before having it as sides.