Soak dry red chillies in hot water for 30 minutes. Then blend it. Take curd/yogurt in a bowl and add chilli paste to it. Mix well.
Now add oil in a deep pan and fry boiled-peeled baby potatoes in it. Poke all the potatoes using a fork. Fry from all sides. Take them out when golden brown.
In the same pan, add cumin seeds/jeera, chilli powder, coriander powder/dhana and turmeric. Mix immediately, do not let it burn.
Add onion paste and ginger-garlic paste to it. Mix well. Cook till oil starts to separate. (around 2-3 minutes)
Add tomato puree to it. Mix well.
Now add salt, cardamom powder and garam masala to it. Mix.
Add curd-chilli paste to it and mix.
Add water to it, mix and add baby potatoes to it. Cover and cook for 2 minutes. (Medium heat)
Take off the cover and give it a mix.
Turn off the gas, garnish it with cilantro and serve hot!