Add curd, ginger-garlic paste, turmeric powder, red chilli powder, Kashmiri red chilli powder, 2tbl tablespoons of mustard oil and salt to the mutton.
Mix everything, cover the marinated mutton, and leave it for half an hour. Proper marination is important so that flavours of spices penetrate mutton pieces.
Dry roast the whole spices and grind them to make a fine and distinctly flavourful blend.
Put a cooking pan on the gas stove to heat up.
Add oil to the pan and fry the whole potatoes. Make sure the potatoes are forked at different places so that salt easily gets into them.
After the potatoes turn red on both sides, take them out of the pan.
Now fry the boiled eggs in oil and take them out in a pan.
Pour more oil (if needed) into the pan.
As soon as the oil is heated up, add onion and fry it until it gets brown.
Add marinated mutton to the pan.
Mix well in the pan and place a lid on the pan. Make sure to cook the dish on a high flame.
After a few minutes, remove the lid and add 1 tablespoon of roasted spices.
Mix well and place the lid once again. You don’t need to add water at this stage as marinated mutton will release enough water.
Wait for 10-15 minutes and remove the lid. Mutton has already started releasing oil and gravy is getting thick, which means it’s time to turn off the oven.
Transfer the mutton into a pressure cooker and pour hot water (as per your requirement) into the cooker.
Pressure cook the mutton until meat is enough tender (2-3 whistles).
Open the pressure cooker carefully and let the steam go out completely.
Add fried potatoes, stir well and cook for a few minutes (3 whistles).
Turn off the flame. Carefully open the lid.
Retransfer the Button Dak Bungalow to the cooking pan.
After the gravy comes to a boil, add fried boiled eggs and give a good stir. Place the lid and let it cook for 5 minutes.
Remove the lid and add roasted spices for final flavor and stir.
Mutton Dak Bungalow is ready. Serve it with steamed rice, pulao, paratha, luchi, naan, roti, or bread.