Step #1 Boil the potatoes, cool, peel & cut them into small cubes & set aside; peel & wash the ginger & set aside; remove the stems, wash & roughly chop the green chillies & grind them to a fine paste & set aside; & whip the yoghurt until it is smooth.
Step #2 Heat the oil in a pan, & add the asafoetida, mustard seeds, cumin seeds, ginger & the green chilli paste.
Step #3 Sauté for two mins; then add the potato pieces, & mix well.
Step #4 Add the red chilli powder, turmeric powder, green cardamom powder, salt & cook for some time.
Step #5 Add the yoghurt & cook stirring continuously.
Step #6 Then add half a c of water & mix well.
Step #7 Cook until it starts boiling.
Step #8 Remove the Aloo Ka Saag pan from the heat & serve hot.