Then place mocha in a pan, cover with water and boil for 15 minutes. Remove from fire and drain water. Squeeze excess water from the mocha as well. Now heat mustard oil in a pan. When the oil is hot, add two tablespoons of coriander paste, three-four tablespoons cummin paste, one teaspoon chilli paste and two tablespoons ginger paste. Fry for a few minutes, add the mocha and mix well with the spices. Just as the mixture begins to stick to the pan, add a quarter cup of water and reduce flame to simmer. Add chickpeas (chola) that have been soaked in water overnight. Also add about six to seven green chillies, salt to taste and two teaspoons of sugar. Stir constantly, and cook till the water is absorbed. Add two tablespoons of milk, mix and remove from fire.
Now heat a tablespoon of ghee. When the ghee is hot, add four bay leaves and whole garam masala (cinnamon, green cardamom and cloves in equal proportion) and cook for a couple of minutes. Pour this mix over the mocha. Cook the mocha for a few minutes, and add about a teaspoon of garam masala paste or powder. Remove from fire. After this preparation is poured into the serving dish, it can be sprinkled with grated coconut and bori (commonly available in Bengali markets) that has been fried crisp and crushed.
Now heat some mustard oil and put mustard seeds in it. Once the seeds stop crackling, put in the pith, one teaspoon turmeric paste, three teaspoons mustard paste and half teaspoon chilli paste. Stir to mix, cover the pan and cook for about five minutes. If the pith is of good quality, it will cook in its own water. If required, though, one could add about half a cup of water. The pith should be cooked till all the water is absorbed. After this process is through, add green chillies and grated coconut and stir.To finish, some grated coconut could be sprinkled on the preparation as garnishing.