Rinse and Soak rice and chana dal for 2-3 hours. After that grind them to a coarse and thick batter (like of Idli/Dhokla). Add salt to taste. (You can use Suji/Semolina, instead of Rice and Chana Dal)

Heat some water in Idli Cooker. Grease plate with some oil and spread batter over it. now spread a thin layer of Green Chutney. Again spread a layer of batter over the chutney and place the thali in cooker.

Let it steam for 20-25 minutes around. Take out the thali. Insert into it a toothpick to check whether the batter is still raw or cooked well. Take out the plate and cut into sqaure slices.

For Seasoning, heat oil in small wok/kadai. Crackle the mustard seeds and sesame seeds into it. Add sliced green chilli and hing. Spread the same over the sandwich dhokla. and garnish with chopped Coriander leaves.