Aloo Gobi

Ingredients :450gm cauliflower, cut into small florets400gm potatoes, cut into small cubes2tbs oil1tsp cumin seedsa big pinch asafoetida (hing)3-4 green chillies, finely chopped1tsp coriander powder1tsp cumin powder1/2tsp turmeric powdersalt to taste1/4cup fresh coriander leaves, finely chopped..