The long-awaited Jan Lokpal Bill, 2015, was passed by the Delhi Assembly on Friday.
On Thursday, the cabinet had cleared two amendments to the anti-corruption legislation in line with changes proposed by social activist Anna Hazare.
"A strong law is being brought. We will go to the Centre and the prime minster and urge him that the Jan Lokpal be passed," IANS quoted Delhi Chief Minster Arvind Kejriwal as saying in the assembly.
The ombudsman will have a chairperson and two members selected by a seven-member panel.
The selection committee will consist the chief minister, the leader of opposition, assembly speaker, Delhi High Court chief justice, another High Court judge, an eminent personality selected by the rest of the panel members and the Lokpal chairman from the next term.
The Jan Lokpal can be impeached only after a high court monitored investigation.
The legislation will bring all the government officials in the national capital, including those of the Centre, under the scanner of the proposed ombudsman. It will not become a law until it receives approval of the Centre.