In numbers: What makes India's general elections the biggest in the world

The process is conducted by the Election Commission of India, an autonomous constitutional authority, with a staff of more than 300 full-time officials at its headquarters in New Delhi

India is expected to hold a general election starting next month in the world’s largest democratic exercise, with Prime Minister Narendra Modi seeking a second straight term.

The country of 1.3 billion people typically holds elections in multiple phases to ensure security across polling stations.

Here are some facts and figures.

Millions of voters
 

More than 830 million Indians were eligible to vote in the last general election in 2014, more than three times the voting-age population of the United States in 2017.

But only about 553 million Indians, or 66 percent of all eligible voters, came out to vote five years ago. There