Heat a pan and few drops of oil.
Add coriander seeds, cumin seeds, methi seeds and ¼ tsp mustard seeds and roast.
Add the dried red chillies and roast until fragrant.
Transfer everything to a plate and allow it to cool.
Transfer the roasted spices to a mixer jar.
Add coconut, turmeric powder, ½ onion, garlic,curry leaves and tamarind. Grind with a little water to make a smooth masala paste.
Heat some oil in a pan . Add mustard seeds, curry leaves and half chopped onion. Saute .
Add the prepared masala paste, salt and enough water to get the desired consistency. Cover and cook the gassi on low heat until the masala is cooked and the gassi comes together.
Add the steamed pundis and gently mix them into the gassi.
Add few curry leaves. Cover and cook for another 5 minutes, allowing the pundis to absorb the flavours of the gassi.
Serve hot.