Every year PHDT is organizing an evaluation on excellence in Social Developments through EWHCS (Estate Worker Housing Corporative Society). Nakiyadeniya Rubber Estate won the Silver award for the year 2015 among all the estates in the final round.
Nakiyadeniya Rubber became first in the regional evaluation, beating 56 estates, went to the final round and ended up in winning silver award. The award ceremony was held at BMICH on the 31st March 2016. This was a unique and historical achievement for Nakiyadeniya Rubber Estate.