Manish Sisodia of the Aam Aadmi Party (AAP) has served as Deputy Chief Minister of Delhi since February 2015 (under CM Arvind Kejriwal).
Delhi has a Deputy Chief Minister (not "Deputy Mayor"). The Mayor of Delhi (ceremonial, 1-year term) heads the Municipal Corporation of Delhi (MCD)—a separate local body. As of 2024, the Mayor is Shelly Oberoi (AAP).
Sisodia was arrested by CBI/ED (Feb 2023) in excise policy case; bail granted (Aug 2024). He remains MLA (Patparganj) and Deputy CM (though portfolios redistributed during incarceration).