In a pressure cooker, add the washed and drained dal, turmeric powder and a tbsp salt along with 1 cup water to cook. Pressure cook the dal until it is fully cooked and keep aside
Once the pressure settles in the cooker, remove the dal in a bowl and whisk it until well mixed and lump free. Keep aside
Heat the cooking pot with the oil. Once it smokes, reduce the flame and add the mustard seeds and dried chilis. Let the seeds splutter and then add the raw mango slices
Add a touch of salt and mix well. Add ¼ cup water, cover and cook the mangoes until they become soft (well cooked)
Once done, add the whisked dal into the pot, mix well and adjust the salt if needed. Add in the slit, fresh chilis and simmer over medium flame for 5-7 minutes. Add the coriander leaves, mix well and remove from flame
Serve your delicious Bengali raw mango dal with steaming hot rice and a side dish of choice. Enjoy!