Soak tamarind in hot water and filter the pulp to remove impurities
Heat a deep pan with oil.
Add mustard,methi and cumin, when they splutter add curry leaves and sauté until crisp.
Add onions and green chili, sprinkle salt and fry till they turn pink
Add eggs, coriander and cumin powder,red chili powder, turmeric, salt. Fry for 2 mins on medium. Pour the tamarind pulp. Mix well. Cover and cook on low heat for 3 to 4 mins. If you wish you can add a tbsp. jaggery or sugar now.
Pour enough water to partially cover the eggs .
Mix and simmer for atleast 5 to 8 mins. Adjust the salt and tamarind.
Off the heat and add coriander leaves. Serve egg pulusu with rice or chapathi.