This document is a letter of recommendation for Shankar Paul from Concern Universal-Bangladesh. It certifies that Shankar Paul actively performed additional duties as Head of the Health Unit from October 2011 to November 2012, successfully managing several water, sanitation and hygiene projects funded by different donors. The letter praises Shankar's intellectual curiosity, professional maturity, leadership quality, and ability to find donor opportunities and represent the organization at national and international levels.