Why Correct: Namami Gange is the flagship program of the Union Government launched in June 2014 as an integrated conservation mission for the Ganga River, officially known as the National Mission for Clean Ganga.
Distractor Analysis: Worshipping the Ganga refers to religious practices and rituals. Canal irrigation from the Ganga involves agricultural water distribution systems. River linking with the Ganga refers to inter-basin water transfer projects like the National River Linking Project.
Takeaway: The National Mission for Clean Ganga (NMCG) was established as a registered society under the Societies Registration Act, 1860, and functions as the implementing arm of the National Ganga Council chaired by the Prime Minister.