More than two dozen Ministers of Parliament from the opposition parties defyied the diktat of their leadership and voted for NDA’s vice-presidential candidate M Venkaiah Naidu, BJP sources claimed.
The former union minister secured 516 votes against the pledged support of around 495 to become the vice-president elect.
With Naidu securing over 68 percent of valid votes against 32 percent of the opposition's candidate Gopalkrishna Gandhi, who received 244 votes.
The cause of concern among the opposition, including the Congress, the Left and the TMC, is that their candidate Gandhi got only 19 votes more than their presidential nominee Meira Kumar even though 40 more MPs had pledged support to him.
Kumar had received votes of 225 MPs, while Gandhi was supported by 244. President Ram Nath Kovind had received support of 522 MPs.
The BJD, which has 28 members in Parliament, and the JD (U) with 12 MPs had switched over to the opposition camp after supporting the NDA in the presidential poll.
Despite desertion by 40 MPs, the NDA's vote count went down by only six, underlining major cross-voting in its favour.
In an electoral college of 785 eligible members, 771 votes were cast out of which 11 were declared invalid, according to officials.
Among the 14 members who could not cast their votes for a variety of reasons, four belonged to the Mamata Banerjee-led TMC, two each to the BJP, Congress and the IUML, and one each to the NCP and PMK. One nominated and one Independent member also could not cast their votes.
Polling officials said this was the highest turnout in the vice-presidential election. Before it, the highest number of votes in the poll was 759 in 2002 when BJP candidate Bhairon Singh Shekhawat had won the election.