Blend roasted peanuts, roasted sesame seeds, coconut, tamarind, green chillies to a fine paste. Keep aside.
Take oil in a kadai and heat it. Once the oil is hot, add mustard seeds, cumin and let them splutter.
Add turmeric.
Add sliced onions and fry till golden brown.
Add ginger-garlic paste and salt. Cook till the raw flavour is gone.
Add the finely blended paste to this and mix well. Add 1 cup of water to make it thin.
Cook on a low flame with the lid closed till the oil comes out from the gravy.
Now add red chilli powder, beaten curd and mix well.
Cook on a medium flame for 10 mins.
To this gravy add the diced capsicum and cook till the capsicum becomes soft.
Garnish with coriander and turn off the flame.