If you want to prep from before- make the two tarkas day before and keep them in the fridge. I do this when I am making for a party. Simply boil the dal-either in instant pot or pressure cooker and mix in the tarka. When I boil the dal from before- I cook it with salt and turmeric. Skip both in the tarka. The second tempering is always added just before serving. I have made the dal many times using fresh ginger garlic or the frozen minced ginger garlic- both give good results, its a matter of time and convenience. I have never used the jarred ginger garlic paste. It has preservatives and vinegar and could alter the taste of the dal. I didnt have fresh green chilies, so I didnt use it this time, but I like to use fresh green chilies in the tarka when i have it. You can reduce the amount of red chilie powder. Using curry leaves and mustard seeds is not very typical of North Indian cooking. You can skip both in the second tempering. I have used both.
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