For centuries, the holy river Ganga has been a symbol of spirituality, purity and life itself. The river is also home to 3,600 Gangetic dolphins, which are now considered endangered.
But today, the Ganga is considered to be the fifth most polluted river in the world.
In 2014, the government of India launched Namami Gange, a flagship project aimed to clean the river Ganga, its ecosystem and the villages around the banks.