Around 4000 NRIs are expected to attend the annual event.
Prime Minister Narendra Modi will inaugurate this year's edition of the Pravasi Bharatiya Divas on Thursday morning at Gandhinagar's swank Mahatma Mandir amid unprecedented security. (LIVE updates from Pravasi Bharatiya Divas
About 4000 NRIs from 58 countries are in the city to attend the annual fest that brings together members of the Indian diaspora to engage and discuss investing in India.
The Foreign Minister of South Africa, Maite Nikoana-Mashabane and President of Guyana Doland Ramotar with attend the inauguration. Mr Ramotar will also be presented with the Pravasi Bharatiya Samman, the highest honour conferred on overseas Indians and people of Indian origin.
2015 is the centenary year of the return of Mahatma Gandhi to India from South Africa on January 9, 1915, from where he led freedom struggle against the British. The Pravasi Bharatiya Divas, now in its 13th year, has traditionally celebrated Gandhi as the original NRI.
On Friday, several chief ministers will pitch their states as investment destinations to the NRI delegates. There is speculation that Uttar Pradesh chief minister Akhilesh Yadav might give the event a miss after controversy over the removal of about 60-odd posters showcasing his state at the venue. (Ahead of Business Summit, a Poster Controversy in Gujarat
Uttar Pradesh government officials have shot off an angry letter to the Anandiben Patel government in Gujarat, stating that Pravasi Bharatiya is a central government event and that the host state should not have allowed UP to be "undermined."
The Pravasi Bharatiya Divas is being organised for the first time in Gandhinagar. The Gujarat capital will also host, at the same venue, the Vibrant Gujarat Summit from Sunday. PM Modi will be back in his home town to inaugurate that mega event too.
Both events began in the same year - 2003. While the biennial Vibrant Gujarat is a pet project of Narendra Modi, who was then Gujarat chief minister, the Pravasi Bharatiya Divas was begun by the first BJP Prime Minister Atal Bihari Vajpayee.