Vice President M Venkaiah Naidu on Thursday lauded the contribution made by the Indian community worldwide, saying that the diaspora should contribute to the agenda of development in India."India was moving fast to transform itself into a modern 21st-century inclusive economy. 3D's -- Democracy, Demand and Demographic Dividend was scripting India's story and the Indian diaspora is the fourth D. You should contribute and join in the development agenda back home," Naidu told a gathering of the Indian community here.He reiterated that India will become a USD 5 trillion economy by 2030, adding that the government took steps to make the country one of the most favourable investment destinations in the world."An ambitious and transformative vision was making India one of the most favourite investment destinations in the world. India has become the fastest growing large economy in the world. We will be a USD 5 trillion economy by 2030," Naidu said.Heaping praises on Vietnam's progress in the