Cameron, a descendant of King William IV (1830-1837), seemed destined for power long before he took over as the head of the Conservative Party in Britain in December 2005.
The 48-year-old leader led his party to a thumping victory amid pre-poll forecast that the verdict would be the closest in decades and the winner would have to depend on more than one party to come to power.
He started his political career by working for the Conservative Party's research department, where he remained for five years. In 1991, he began briefing then-Prime Minister John Major, and the following year he was promoted as special adviser to Chancellor of the Exchequer Norman Lamont.
Later, UK Home Secretary Michael Howard recruited Cameron to work for him, primarily in a media relations role. In 1994, Cameron left politics to work as the director of corporation affairs at Carlton Communications, a British media company. He resigned from that role in 2001, in order to continue his pursuit of a Parliamentary seat, which he won at Witney, Oxfordshire.
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Today's result also reflects on Cameron's ability to have steered an unexpected coalition struck with the Liberal Democrats last time to come out fairly unscathed.
A second term for him is likely to see stronger ties between the UK and India as Cameron has made considerable symbolic gestures towards the Prime Minister Narendra Modi led government.
Cameron had extensively campaigned among the 1.5 million diaspora and 615,000 India-born population eligible to vote in the election to return to 10 Downing Street.
Besides politics, Cameron, who is married to Samantha, is also a father four children. Their first child, Ivan, died at the age of 6, from a combination of cerebral palsy and a form of severe epilepsy. He has often made reference to that loss and the care Ivan received from the state-funded National Health Service (NHS) to persuade skeptics of his noble intentions.