The surprise meeting was held in a house in posh Golf Links of Delhi in which former Army Chief Gen V K Singh is believed to have been present.
The meeting came soon after Hazare had a tumultuous meeting with his team over turning the anti-corruption movement taking a political plunge.
Pramod Joshi, a spokesperson for Ramdev, confirmed the meeting but said he was not aware of what was discussed in the meeting.
There was also no confirmation about Singh's presence in the meeting.
Hazare had earlier skipped the protest organised by Ramdev last month.
