Take a medium sized bowl and put the items mentioned in the ingredients list into it and cook it in a pressure cooker for 4 to 5 whistles, this is quick way of making the sambar, the other way is cook only the dal and mooli in the pressure cooker and rest are cooked in the usual manner and then added to the cooked dal.

After the cooker has cooled down and the pressure has released, take a wok/Kadai and heat oil and put the items mentioned in the tempering list, add them in the order mentioned, expect for Sambar powder and Coriander Leaves, fry them for a minute or two.
Now add the cooked dal and other ingredients and add the Sambar powder and cook it for some time till you get the desired consistency. Adjust the salt at this stage, add fresh coriander.
Best served it along with rice and papad.