Boil, cool, peel and roughly mashed potatoes.

Heat 2 tbsp of oil in a pan, add mustard seed when they crackle add turmeric powder and mashed potatoes add lemon juice and mix well. Remove from heat add coriander leaves. Mix well. Make equal sized balls of the above mixture. Keep aside.

Take besan in a bowl add soda remaining turmeric powder, red chilli powder salt one tbsp of hot oil and enough water and whisk to make a batter of coating consistency. Cover and rest the batter for 15 min.

Heat sufficient oil in kadai. Dip the potatoes mixture ball in the batter and deep fry till golden. Drain and place them on an absorbent paper. Serve hot with tomato ketchup.