New Delhi, Aug. 18 -- The National Democratic Alliance's (NDA) nominee CP Radhakrishnan is all set to win the upcoming Vice Presidential election, but it will be a challenge for the ruling dispensation to improve the victory margin against a united Opposition.

The polling for the Vice President election is scheduled for September 9, with the last date to file nominations on August 21. The Opposition had announced it would fight the poll - as all Opposition parties have contested regularly since 1997- and was waiting for the ruling dispensation to announce its candidate.

Since the first VP poll in 1952, official candidates have always won the election, sometimes, winning unopposed. But, the challenge for the Narendra Modi-led NDA is secu...