The usal (उसळ) is usually prepared from bean sprouts (and sometimes other pulses) and packs in a punch of nutrition.
The thin spicy oily gravy is known variously as kat (कट) in the Kolhapur region, sample (सांपल) in the Pune region, tarri (टर्री) in the Nashik region and otherwise generally as rassa (रस्सा). Fiery hot, it works nicely to set your tongue on fire!