While Naidu and Mathur each got 42 votes, ruling BJP's other two candiates Harsh Vardhan, a member of erstwhile Dungarpur royal family, and Ramkumar Verma, a retired RBI official, secured 40 each.
Congress-supported Independent candidate and industrialist Kamal Morarka got 34 votes--24 of Congress, four of National People's Party, two of BSP and four Independents. One vote was declared invalid.
A candidate needed 40 votes to win in Rajasthan.
BSP MLA B L Kushwah, who is in judicial custody in a murder case since October 2014, was not allowed by the Rajasthan High Court to cast his vote.
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BJP has 160 MLAs followed by 24 of Congress, 4 of National People's Party, three of BSP, two of National Unionist Zamindara Party and seven Independents.
(Reopen DEL36)
After the results of the elections, Mathur said
"Rajasthan today went one step ahead in the direction of a Congress-free India".
Harsh Vardhan and Ramkumar Sharma said that it was the victory of party MLAs and the Chief Minister.