The Ramanujan Prize is awarded annually to a researcher from a developing country who is less than 45 years of age on 31 December of the
year of the award, and who has conducted outstanding research in a developing country.

The deadline for receipt of nominations for the 2017 Prize is 1 February 2017.

https://www.ictp.it/about-ictp/prizes-awards/the-ramanujan-prize/call-for-nominations.aspx