Singh, who had locked horns with the government on the issue of his age, will arrive at Jantar Mantar this evening where Hazare and his aides are on a fast.
Gen Singh will offer juice to Hazare to break his fast, Team Anna member Prashant Bhushan told protesters here this afternoon.
Singh was among 21 others who yesterday appealed to Team Anna to end their stir contending that their energies are needed for reforming the existing political system.
They also appealed to Hazare and his associates to take up the challenge to "democratise and decentralise" power while accusing the government of stonewalling the demands of the civil society and even alleged that the Opposition did not fare well on this score.
"We call upon Shri Anna Hazare and all his associates who have been on an indefinite fast to give up on their expectations from this establishment.
"Instead we call upon them to focus their energies on creating an alternative political force that is democratic, accountable, ethical and non-violent and capable of leading an electoral revolution to democratise and decentralise power and make the power structures of the country more accountable to the people," the eminent persons had said.