firstly, heat oil and add in tomatoes.
saute for a minute making sure is oil is coated well to tomatoes.
now cover and simmer for 10 minutes.
after 10 minutes, tomatoes have cooked completely turning soft and mushy.
add in ½ cup tamarind extract and mix well.
again cover and simmer for 10 more minutes.
now the mixture has turned thick and saute till oil is released from sides.
add methi-mustard powder, turmeric, chilli powder, salt and jaggery.
saute on low flame till the spices gets cooked well.
pour the garlic tempering over tomato pickle and mix well.
finally, serve tomato pickle along with rice, idli or dosa.