India Border Security Force
Here's another intriguing headdress worn by the Border Security Force in India. This relatively young force was established in 1965 during the Indo-Pakistani War, with the primary goal of preventing incursions from Pakistan. It has grown significantly over the past 50 years.
As unusual as it may seem, this hat is a common type of headdress in the Indian military. With some research, you'll find that different units wear the same hat with varying colors and patterns to denote their role within the military.