Among the main providers of kalonji oil are: Ashoka Oil Industries: a producer and exporter of kalonji oil among other culinary oils. They sell additional food products, Kachi Ghani Mustard Oil, Netaji Groundnut Oil. ABdullabhai Abdul Kader:Approved by the government, they offer genuine cold-pressed kalonji oil made from nigella seeds—also called black seeds or Nigella sativa. Ayurvedic medicine and many other health-related uses find use for its superior kalonji oil. AG Business: a major kalonji oil supplier guaranteeing quality and purity 3. These producers are very important in supplying real kalonji oil for many uses.