I can offer a solution for GOI to raise FOREX. I really don't know who is the best person to contact. Though i communicated with Indian consulate in Chicago IL. Can any one guide me to move further.

Diaspora of age groups(18-45) are more conscious and aware about their society, political, economical, historical, tradition and many more things about their country. They are more inclined to save the identity and culture because of modernization process. You can see various example of funding by NRI for the safeguard of culture and identity. They should organize regular talk in residing country,which can include people of own countries as well as other countries,specially university students.

The diaspora should be more effective as Ambassadors for brand India because they can understand the real sociopolitical environment at grass root level of that country.