Have there ever been generation gaps as yawning as the one between a grandfather born in the 1910s and a grandson born in the 1980s? We were separated by India’s most momentous decades. When he was a baby, the prospect of independence from the British was still only a glimmer on the horizon; by the time he first held me in his arms, he had already witnessed two world wars, the rousing energy of the Indian freedom movement, wars with China and Pakistan, and men on the moon.