Generations of Indian diplomats have been using mango for years to win both friends and foes. [...] Foreigners didn’t know how to tackle the fruit, a fact happily taken advantage of by one Indian diplomat living in Geneva. He once met Dag Hammarskjold, the UN secretary-general, who told him he kept getting mangoes from Indians which he didn’t know how to eat. [...] It was reported in 1955 that as Chou ate his mango “his beetling brow relaxed, his lips rippled into a smile… Thereafter, he ate out of Mr. Nehru’s hand and signed the famous joint declaration.”

The prize was for Pasternak’s “notable achievement in both contemporary poetry and the field of the great Russian narrative tradition”. But officials singled out Dr Zhivago, an elegiac novel that refused to celebrate the Soviet system. [...] With Soviet cultural diplomacy in the doldrums, any further intervention by Nehru would have deeply embarrassed Moscow.