Solution:Pravasi Bharatiya Divas (PBD) has been celebrated on 9th January every year since 2003 to mark the contribution of the Overseas Indian community to the development of India. January 9 was chosen as the day to celebrate this occasion since it was on this day in 1915 that Mahatma Gandhi, the greatest Pravasi, returned to India from South Africa, led India's freedom struggle and changed the lives of Indians forever.