ganga action plan was started in which year
Pollution of the Ganges The Ganges Action Plan (GAP) was launched by Shri Rajeev Gandhi, then by the Prime Minister of India, on 14 January 1986. Its main objective was to improve the water quality by the interception, diversion and treatment of domestic sewage and to prevent toxic and industrial chemical wastes from identified polluting units from entering the river. The other objectives of the GAP are as follows:
Yamuna The Yamuna (Hindustani: /jəmʊnaː/), also known as the Jumna, (not to be mistaken with the Jamuna of Bangladesh) is the longest and the second largest tributary river of the Ganges (Ganga) in northern India. Originating from the Yamunotri Glacier at a height of 6,387 metres on the south western slopes of Banderpooch peaks in the uppermost region of the Lower Himalaya in Uttarakhand, it travels a total length of 1,376 kilometres (855 mi) and has a drainage system of 366,223 square kilometres (141,399 sq mi), 40.2% of the entire Ganges Basin, before merging with the Ganges at Triveni Sangam, Allahabad, the site for the Kumbha Mela every twelve years. It is the longest river in India which does not directly flow to the sea.