In a mixing bowl add both flours, salt, cumin powder and oil. Mix well and knead a smooth dough using as little water as required.
Cover and let the dough rest for five minutes.
Make filling
Heat oil in a pan and add cumin seeds, coriander seeds, and ginger. Saute for a minute.
Add coriander powder,red chilipowder garam masala, amchoor powder and salt.
Stir and add potatoes and mix well until all the spices combined with potatoes.
Add chopped coriander leaves and set aside.
Make samosa
Divide the dough in 8 equal parts and roll into round balls.
Roll out one ball o dough into a circle using dry flour and divide it into two halves.
Take one half of the circle and fold one semi-circle in the shape of a triangle, sealing along the fold.
Place a tablespoonful of stuffing in the cone and seal the outer edges by applying some water. Repeat the same procedure with rest of balls.
Heat enough oil on low to medium heat in a wide pan or wok. Add 2-3 samosas into the oil slowly and deep fry them till golden from both sides.
Drain on paper towel and serve hot with mint chutney.
Notes
Don't let the dough rest for too long or else it will become soft.Adjust spices as per your taste preferences.You may add onions and green peas too in the stuffing.Roll the dough gently using enough dry flour or you may roll it in between parchment paper too.