As the nation celebrates the 150th year of Mahatma Gandhi's birth anniversary, eminent musician Pandit Hariprasad Chaurasia remembers the Father of the Nation's favourite bhajan Vaishnava Janato. "What is extraordinary about this song that people are still interested in humming it even after so many years and people still want to hear the song? Join in with its music and you will get not just Mahatma Gandhi's, but the entire world's blessings," he says.