If the potatoes are small either boil them and cut in half or just cut them in half.
Take oil, let it warm add rye,jeera, methi dana , varyali, and kalonji, some green chillies.
Once it splutters add the potatoes and salt.
After a while add huldi, chilli powder and dhania powder.
Mix and cover and keep on slow. Sprinkle water if you need to.
Last add amchur powder and leave it for 2 mins then sprinkle chopped cilantro (kothmir)