 Aided by the same westerly wind burst that assisted Cyclone Daryl in the southern hemisphere, the disturbance gradually organized and persisted while moving west-northwestward through the Bay of Bengal.Late on November 21, the system developed into a depression, which the JTWC classified as Tropical Cyclone 04B.Steady intensification ensued; by November 23, the JTWC upgraded the cyclone to the equivalent of a minimal hurricane, and the IMD steadily upgraded the storm to increasing categories.