Alcohol, it is often said, is the lubricant of diplomacy. India’s external affairs ministry has long preferred orange juice and such like at official functions, in deference to government policy. A new drink is gaining in popularity with Indian diplomats — coffee! External Affairs Minister S M Krishna’s son-in-law, V G Siddhartha, who owns the Cafe Coffee Day chain, is busy going global and Indian diplomats are happy to promote the new ministerial beverage. Best way to get the minister to sign a file, say his officers, is to make sure it smells of coffee!