Heat oil in a pan, add sweet corn and add salt to it. Cook for a min, or it will turn translucent or change it's colour. Do not wait to turn into golden coloured. Add tomato puree and add salt as required in tomato puree. Cook till water burns. (Here I didn't had sweet corn available at home so I skip that step, and cooked with tomato puree. But sweet corn is main, it will taste batter.)