Ganga is being tunnelled.

What the Government intends to do?
Today the government is in the process of building a cascade of dams along the Ganga, commencing near her source in the pristine Himalayas at Gangotri. These projects will join the Tehri dam, and other dams right up to Haridwar. 
What does it entail?
These projects entail sheer destruction of the Himalayas through blasting, drilling and pulling down mountain slopes in the process of building tunnels and powerhouses. It involves cutting forests, trees, dirtying a pristine and untouched portion of our mountains and scarring an entire valley permanently. Finally since the projects are consecutive it entails pushing an entire river underground through dark, sunless tunnels without a break.
The latest projects, that need to be stopped immediately are?
Bhairon Ghati I – under consideration (just 9km from Gangotri)
Bhairon Ghati II – under consideration (directly following the above)
Loharinag –Pala – construction started
Pala – Maneri – about to start (directly after the above)
The Unique River?
The Ganga is famous for her self purifying properties. Traditionally it is a known fact that Ganga water can be stored for any length of time without decay, while other waters would decay if similarly stored. Scientific studies corroborate this fact. Perhaps she is the only river of her kind in the world.
Is the unique Ganga water still Ganga water?
NO. These projects admit that water temperature will rise, flow rate decrease, flora and fauna will be destroyed. The water itself does not flow through natural Himalayan rock, but through cemented tunnels. Already there is evidence of the companies dumping pure cement into the river,dumping muck and other wastes into the water. Hence the qualities of Ganga water stand to be destroyed right at the source – thereby in effect destroying the entire length of the river.
An agreement almost 100 years old being ignored?
Almost a century back when the British were planning to check the flow of the Ganga at Haridwar, Madan Mohan Malviya and some kings, the 4 Shankaracharyas and the public united in protest. The British relented. Chief Sec. of the United Provinces, I.C.S., R.Burns passed order no 1002 on 20-4-1917 to ‘maintain a free flow of the Ganga.’ The spiritual traditions that even an alien govt. respected, today our ‘own’ leaders threaten to violate
Call of the Ganga- ‘The ahvaan’-
‘A free flowing Ganga is an essential part of my country, our culture and our heritage. I strongly protest the tunneling and destruction of this flow for the production of hydro-power or any other reason.
We have inherited a clean environment, rich flowing rivers and an incredible culture from our forefathers. Conscience demands that we leave it intact for the coming generations of our country.
Mere consumption cannot be the final goal of our ‘development’ process. Hence as a citizen of this country I demand that the Ganga be left free and untampered in her course from Gangotri to the plains