In a bowl, add rajma masala, mash it well. Now add, flour, salt, sugar, coriander leaves, sooji, lemon juice, teaspoon of oil and mix well. Add very little at a time and start kneading the dough. Knead it into stiff but smooth dough. Divide the dough into small balls. Take one ball and roll it into 3 inch uniform thin disc. Heat enough oil in a pan. Gently slide in the poori and fry it on medium high flame from both the sides until brown and puffed. Take out onto an absorbent paper. Repeat the same for all the balls. Serve hot achaar or with any sabzi or chai or on its own.