India, May 16 -- Around 28,000 balloting units of electronic voting machines (EVM), 14,000 control units, and an equal number of VVPATs are likely to be used for polling on May 25, when the seven Lok Sabha constituencies of the Capital will go to polls, according to officials aware of the development.

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The officials said that around 5,500 balloting units around 2,800 control units, and VVPATs will also be kept in reserve. The requirement for the number of balloting units of EVMs has doubled compared to the number of stations (13,637) in Delhi because of the high number of candidates in the fray across the constituencies.

The balloting unit is a key part of t...