Cover the lid of the pressure cooker and seal with the whistle. Cook on high heat till the 1st whistle and then reduce the flame to low and cook for another 10 minutes. Once done, turn off the flame and allow the pressure to release naturally.
Remove the whistle and lid. Turn on the flame to a medium, add jaggery and mix to combine. Boil. Add chopped coriander leaves and some freshly squeezed lemon juice and serve!