In an Instant pot, add chana dal with the remaining water from soaking.
Add in the potato, and 1 cup extra water, round red pepper, cinnamon stick, black cardamoms, cumin powder, black pepper, red chili powder, Garam Masala powder, and 1½ tsp salt.
Give it a quick mix.
Cover the lid and Pressure it for only 3 minutes.
Let it vent out the steam immediately.
Open the lid, let it cool down for 5 minutes.
Transfer the batter from the Instant pot to a food processor.
When transferring make sure you use a slotted spoon or a skimmer spoon to transfer. Any extra water should not be transferred.
Add in green pepper, cilantro, amchur powder, and rice flour.
Pulse it for only 10-15 seconds max.