"The Delhi (Assembly election) results are an example to show that the people are thinking differently from traditional politics," he said in a statement.
Rao has sent a congratulatory message to Kejriwal, the statement said.
He said people want a corruption-free and transparent governance.
He recalled that the AAP had supported the formation of a separate state of Telangana.
Rao wished that Delhi achieve progress in all spheres under the leadership of Kejriwal, the statement added.