Wash and peel the all potatoes. Cut it in a slice with the help of chips cutter. Soak it 5_6 hour in the water. Then heat the vessel and boil the chips. With enough water. Put them Alum powder and salt in it.

Drain it and let the chips dry in sun light or fan wind and flatten then in a plastic sheet and after 4 hours. The next day it. Will be fully dried store in container after drying fry in enough heat oil and drain in paper napkins