Take rawa/suji , curd, soda and salt in a bowl and knead a soft dough. Add water if required and keep it aside for 5 minutes.
In a pan take some oil and add mustard seeds.
Next when it crackle add curry leaves, chillies, onions coriander, tumeric and cumin powder and give it a stir. Add some salt and ginger garlic paste. Wait till the raw smell goes off.
Finally add potatoes and chopped coriander and cover for some time. squeeze some lemon juice and mix well.Add some garam masala and mix again.
Now divide the potato mixture into small portions and stuff some cheese in it and make a patty. Apply some oil on palm , Take the rawa dough and cover the potato patty and give a kachori shape.
Spread some dry rawa on a plate and roll the kachori in it. Deep fry it till golden brown and serve hot.