The event is being organised for the first time by External Affairs Ministry (MEA) in the wake of government's decision to merge Ministry of Overseas Indian Affairs with it.
Last year, the government had decided to hold larger version of Pravasi Bhartiya Divas (PBD) after every two years and that limited version of the event will be organised in the intervening year.
The event tomorrow will be addressed by External Affairs Minister Sushma Swaraj and her address will be webcast by almost all Indian missions and posts abroad. This will be followed by video conferencing with select Indian Missions.
The government is likely to seek deeper engagement of Indian diaspora in the country's overall growth and development.
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January 9 was chosen as the day for PBD as it was on this day in 1915 that Mahatma Gandhi, the "greatest Pravasi", returned to India from South Africa and led India's freedom struggle.
The event also provides a forum for discussing key issues concerning the Indian diaspora.
The government has directed all Indian Missions to celebrate the PBD in an appropriate manner.