"Lokpal, which has Anna's support, should definitely be passed in Parliament. It can be amended later, if needed," Ramdev told reporters here.
"Several amendments have been made to the Constitution. If required, the Lokpal Bill can also be amended," he said.
Taking a dig at Aam Aadmi Party convenor Arvind Kejriwal, he said, "If he tries very hard, his party might be able to muster two-three seats in Lok Sabha polls."
Ramdev also criticised Congress for opposing the Supreme Court decision criminalising homosexuality.
Expressing strong support for BJP leader Narendra Modi, Ramdev said if the Gujarat CM becomes the Prime Minister, all the black money will be brought back to the country.