Solemn grey walls welcome visitors to Kabul as they emerge from the city’s airport. The tall walls line the various diplomatic and government buildings, as well as the homes of the rich and powerful...

We are in the Dasguptas’ apartment in south Calcutta. The 75-year-old has just returned from an evening walk with his wife Sohini, who has been his assistant director in the last few films. The apar...