Congress MP B K Hariprasad (64) from Karnataka will be the Opposition candidate for the post of Rajya Sabha deputy chairperson, sources said on Wednesday.
Several Opposition parties, who have joined hands against the BJP, decided to field a joint candidate to take on the National Democratic Alliance nominee, Harivansh Narayan Singh of the JD(U), for the August 9 election.
Wednesday is the last date for filing of nominations.