Wash the chilies thoroughly. Pat dry, remove the stalk.
Chop the chilies in 1/2 inch chunks.
Heat a pan with oil, add mustard seeds and cumin seeds. Let them splutter.
Next add fennel seeds, saute for few seconds.
Then add the hing, turmeric powder and chopped green chilies, mango powder, coriander powder and salt and sauté for few minutes.
Let the chilies simmer for 1 to 2 minutes until they absorb all the spices.
Cover and cook the chilies for 2 minutes on low flame until they get tender.
Remove the lid after 2 mins, cook on high flame until the moisture dries up completely.
Serve with parathas.