As Delhi heads to polls, it's a three-way fight between Congress's Sheila Dikshit, BJP's Dr Harsh Vardhan and Aam Aadmi Party's Arvind Kejriwal. Several surveys indicate that Mr Kejriwal may actually do well, but speaking to NDTV, Mrs Dikshit, three-time Chief Minister, said that opinion polls have no basis and there is nothing substantial in the Opposition's campaign.