In India, more than 620 million people defecate in the open. That's practically half the population. The other half have become blind to the practice. So how do you get a blind population to open their eyes and see the big Poo Problem, asks UNICEF?

India's first Poo Song - composed using various Loo Sounds - by the music director, Shri (of the film 'Life of Pi' fame). Watch