Assistant returning officer Mukul Pandey said at the closing of the voting process, 771 out of 785 MPs had cast their vote.
The counting will begin at 6 pm and the result would be out by 7:15 pm.
Two BJP leaders -- Sanwarlal Jat and Vijay Goel -- are hospitalised and could not vote, BJP leaders said. The NDA's M Venkaiah Naidu is pitted against opposition candidate Gopal Krishna Gandhi.
There are two vacancies each in the LS and RS.
One BJP Lok Sabha MP is barred from voting following a judicial pronouncement.
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