In a large mixing bowl, add the mashed potatoes, singhara atta, salt and green chilli paste.
Mix everything together and make a smooth dough. Apply a little oil on the dough.
Then take a kitchen press or chakli maker and attach the jali (attachment) with the tiny holes. Grease the chakli maker with oil and place the dough into it.
Heat oil in a wok, keep it on medium heat. Then directly press the dough into the oil. Let it fry for some time. Flip the singhara chilli bhujia and fry till it becomes golden on both sides. Transfer them to a plate lined with tissue paper, to drain the excess oil.
After it cools down completely, crush it gently and store it in an airtight container. Serve it with tea or coffee or sprinkle it on top of chaat.