Delhi Chief Minister Atishi handed over her resignation to Lt Governor V K Saxena on Sunday, a day after her Aam Aadmi Party (AAP) faced a crushing defeat in the assembly polls.
Atishi, who retained her Kalkaji seat, handed over her resignation to Mr Saxena at Raj Niwas, officials said.
The BJP returned to power in Delhi after more than 26 years, winning 48 of the 70 assembly seats. The AAP won 22 seats while the Congress drew a blank in the polls held on February 5.