A month after they first queued to vote in India's mammoth general election, the country's voters will learn the outcome on May 16. The election, staggered over five phases — involving five polling days over four weeks, rather than one "election day" — will determine who rules the world's largest democracy. Only one thing is certain: no single party will win a majority on its own. India is set for more coalition rule.

The man, whose nationality was not released, arrived in India on Wednesday and was quarantined at the airport when he was found to have a fever, the health ministry said in a statement.