Amul's mascot, the utterly butterly little girl, has turned 50, amidst much celebration and a book being brought out eulogising the anniversary. An icon, wearing a polka-dot frock, famous for poking fun at national events and personalities, first made an appearance in 1967. All present-day news-makers, from President Pratibha Patil, Prime Minister Dr Manmohan Singh and US President Barack Obama to actor Amitabh Bachchan, cricket maestro Sachin Tendulkar and even the industrialist Ambani brothers have been featured by the advertisements. The Amul baby ads have often been described as one of the best Indian Advertising concepts because of their humour, with puns being its forte, and their penchant of picking up on current events to bring home a point. Let's look at some of the best ad campaigns put up by the 'Utterly Butterly' Girl.