Take all purpose flour in a bowl and add red chilly powder, chat masala, garam masala and salt and mix them well then add water to make a nice paste.
Now in the mashed potatoes add green chillies, red chilly powder and salt and mix it.
Take one UNIBIC biscuit and cover it with the potato mash from both the sides so that the biscuit covers itself and then dip it in the all purpose mix and cover it nicely
In a wok heat oil and fry it on the low flame and then serve it with your favorite chutney or sauce