Here we have a POD of 1857 when India officially became a crown colony. Indian indenture labour was used throughout the British empire. eg. In Fiji, Mauritius, Guyana,East Africa,etc. The challenge is to make at least 6 Indian majority countries outside of South Asia (5 of whom must be Hindu majority) and the population of the Indian diaspora must be at least 150 million by the year 2019.