Heat a skillet or saucepan, add oil and once its hot add in mustard seeds, cumin seeds, torn dry red chilies, garlic, curry leaves.
Now add in finely chopped onion and fry until onion turns light golden brown.
Then add in turmeric powder, red chili powder, salt, ground cumin and give it a good mix.
Now add in tamarind pulp, water and give everything a good mix. Cover the pan and cook until water comes to a boil.
Now add in chopped butternut squash,jaggery, roasted fenugreek seed powder and give it a good mix. Cover the pan and cook until butternut squash turns tender. It might take around 10 mins.
Taste and adjust the seasoning to your taste preference.
Finally add in chopped cilantro and it's all ready to serve.
Serve hot, tangy and sweet Butternut squash pulusu with some cooked rice and a drizzle of ghee, some fryums of potato roast on the side.