The time is over for now for Kejriwal to oppose others, said Kher during a function at the Ujjain Press Club last evening.
Anupam Kher had participated in Anna Hazare's campaign against corruption earlier.
"Kejriwal should now perform and prove himself," Kher said adding, he himself had no plans to join politics.
Kejriwal had in the recent past alleged nexus between realty firm DLF and Robert Vadra, the son-in-law of Congress president Sonia Gandhi.
He had also demanded resignation and arrest of Union Minister Salman Khurshid over allegations of financial irregularities in the functioning of a trust run by Khurshid's wife.
Kejriwal had also made allegations of corruption against BJP president Nitin Gadkari.
Meanwhile, Kher said he did not agree with Baba Ramdev's view that 26/11 Mumbai terror attack convict Ajmal Kasab should have been hanged in public.
This is an issue pertaining to law and the authorities took a suitable step, he added.
