When was the Water (Prevention and Control of Pollution) Act passed?

Define/Explain: Point sources of water pollution.

What are the components of domestic sewage and industrial effluents?

Common indicator organism of water pollution is

$(a)$ Discuss the major programs that the Ministry of Environment and Forests,Government of India,has initiated for saving major Indian rivers from pollution.
$(b)$ Ganga has recently been declared the national river. Discuss the implication with respect to pollution of this river.

Water pollution is caused due to