Sajina Khatton (L) and her brother Mustaq help her mother to change dress by covering up with a saree (Indian woman’s loin-cloth). They live in the footpath of Kolkata for last 25 years. India has the world’s largest concentration of street children and in Kolkata it has an estimated number of over 125,000 street children. [Photo was taken by an Indian photographer Sudipto Das in Kolkata of India on May 25, 2010.]