4 nos Tomato1 no Onion (chopped)3 nos Green chillies (chopped)Ginger (crushed) - 2 ts)1 tsp Cumin seeds (Jeerakam)2 tsp Coriander powder2 tsp Chilly powder1 tsp Turmeric powder1 tsp MustardCurry leaves (Few)Salt (As reqd) For preparing tomato masala, first heat oil in a kadai and splutter mustard seeds. Add onion and ginger-garlic crushed.Add cumin seeds, coriander, chilly powder, turmeric and salt.Add green chillies and tomato.Cover and cook till the juice comes out.When tomato become tender, remove from flame.Tomato masala is ready. Kerala