The results of the mammoth exercise, which concludes on May 12, are due on May 16.
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A polling officer prepares to carry an electronic voting machine (EVM) as an Indian security personnel stands guard inside a strong room ahead of the fourth phase of general election at Dhalai district in the northeastern Indian state of Tripura.
A woman holding her child votes for the general election inside a polling station on the outskirts of Jammu.
A polling officer applies ink on the finger of a voter at a polling station.
Tribal Indian women stand in a queue to cast their votes for the general election at a polling station in Kandhamal district in the eastern Indian state of Odisha
Polling officials sort electronic voting machines (EVM), stationery and documents collected from a distribution centre ahead of the second phase of the general election at Muzaffarnagar in the northern Indian state of Uttar Pradesh.
Villagers stand in a line to cast their votes at Sera village in the northeastern Indian state of Arunachal Pradesh.
A woman (L) casts her vote with an electronic voting machine as others get their voting slip from an officer at a polling station in Majuli, a large river island in the Brahmaputra River, Jorhat district, in the northeastern Indian state of Assam.
Muslim women, who were displaced by deadly religious strife, last year, stand in a queue to cast their votes for the general election at a polling station in Palra village in Muzaffarnagar district in the northern Indian state of Uttar Pradesh.
Nuns smile as they wait in a line to cast their votes for the general election outside a polling station in the southern Indian city of Kochi.
A girl carries flags of Indian political parties to load onto an auto rickshaw on the outskirts of the western Indian city of Ahmedabad.
Police stand at a centre distributing electronic voting machines for the general election in the northern Indian city of Chandigarh.
Women hold copper pots and coconuts over their heads to give a traditional welcome to Hindu nationalist Narendra Modi, prime ministerial candidate for India's main opposition Bharatiya Janata Party (BJP), as he arrives to file his nomination papers for the general elections in Vadodara, in the western Indian state of Gujarat.