Heat oil in a pan, add cumin seeds and once they crackle, add ginger, garlic, curry leaves, green chillies and saute on medium for a few seconds till fragrant.
Add onions and fry till they turn golden.
Add tomato puree, sambar powder, salt and cook on low for 2-3 minutes till the rawness of tomatoes goes. Add water, mix well and cook for 1-2 minutes on low till the gravy thickens.
Add chopped eggs, coriander leaves, mix well and cook for 1-2 minutes till the eggs absorb the masalas.
Heat a tawa or pan and fry all the parathas on either side with a few drops of ghee or oil till they are light golden and set aside.
Just before serving, take one fried paratha on a plate, spread mint chutney all over the paratha, add egg masala to the center, add a few onion rings, garnish with coriander leaves, wrap into a roll and serve. Follow the same steps to make rest of the egg masala rolls.