Cook the chopped green tomatoes in half cup of water along with tamarind, turmeric powder, jaggery and green chillies. These unripe tomatoes will get cooked very fast. Switch off flame once tomatoes are soft.
Once the cooked tomatoes return to room temperature, transfer them to mixer or blender and grind it to fine paste with salt.
Meanwhile dry roast the sesame seeds and powder it coarsely. Add this to ground green tomato chutney. Give a quick stir.
Heat a seasoning pan and add the following ingredients: cooking oil, mustard seeds, black gram lentil, cumin seeds and fenugreek seeds. Let the mustard seeds pop while still stirring the ingredients add curry leaves and broken red chilly too.
Pour thus prepared seasoning to green tomato chutney.
Colorful creamy green tomato chutney is ready. Pair it with rice and relish.