Hazare and Kejriwal were the main forces behind the now disbanded Team Anna, which started anti-corruption movement across India.
Elaborating his opinion about Kejriwal, Anna said his former colleague was not selfish.
"I have never seen him think of his material well-being. He's working for the society," said Anna.
Hazare's comments come a day before the launch of Kejriwal's new political party.
Difference between Hazare and Kejriwal came out in the open, when the latter announced his plan of launching a political party to fight elections to help eradicate corruption from the country.
Anna said he and Kejriwal had the same goal, but different paths.
"Those who wants to join politics are free to do so. Those who wants to remain in the movement can remain in the movement," said Hazare.
However, Hazare has once again reiterated that he would never associate his name with any political party.
"I will never join politics. Once again I am saying that no political party should use my name or photograph to gain mileage," said Hazare, distancing himself from Kejriwal's plan of launching political party.
Hazare said he had met several retired bureaucrats and nearly 70 ex-servicemen who want to join his movement.
The grand old man of anti-corruption crusade will also train selected volunteers to run his movement successfully.
Hazare is also planning to tour the entire country from November.