Rana Mitter looks forward to an Age of the Happy City with innovative urban scholar, Richard Burdett, and journalist and urban experimentalist, Charles Montgomery. One of India's leading historians Ramachandra Guha tells Rana about Gandhi before India. He traces the friendships, set-backs, struggles and events which shaped Gandhi's thinking and honed skills he would take back into India's struggle for independence. And Jacky Klein reviews a major retrospective of artist brothers Jake and Dinos Chapman's work opening this week at London's Serpentine Sackler Gallery.