1.Cut the tomato into quarters. 2.Roughly chop the jaggery. 3.Heat the oil in a pan over a medium flame. 4.Add the mustard seeds. 5.When they crackle add the curry leaves and the gram. 6.Lightly fry for a few seconds over a low flame. 7.Add the quartered tomatoes and the red chilly powder and fry for 2 minutes over a medium flame stirring continuously. 8.Add the jaggery and the green chillies and fry for a minute. 9.Add a little water and the salt and cook till the gravy is thick and the tomato is mashed. 10.Serve hot garnished with the corriander leaves.