Firstly, take a wok, heat it, add peanuts into it and dry roast them for few minutes.
Cool them down, peel the peanuts and rest them aside.

In a separate pan, add oil and heat it.
Add chopped green chillies saute for few minutes on low flame.
Add tamarind pieces, cook and saute the whole mixture until they turn slight brown or pink in colour

In a blender, add the peeled peanuts and powder them finely.
Into the powder, add the cooked mixture of chillies, onions and tamarind.Add salt as per tasteAdd water as per consistency required.Blend the chutney into a fine paste.Transfer the chutney into a bowl.

Give tadka In a sauce pan, add oil and heat it.Add cumin seeds, mustard seeds and allow them to papaya up.Add dried red chillies and stir for few seconds.Add curry leaves and let them crackle.Transfer this tadka all over the chutney.Serve the chutney with idli, dosa uttapam etc.