She is widely credited with transforming New Delhi’s infrastructure by improving public transport in the city and introducing buses powered by compressed natural gas (CNG) to combat pollution. Dikshit joined the Congress Party in 1984, and later led it to an unprecedented consecutive three-term victory in Delhi. She was also a member of the Indian delegation for the United Nations Commission on the status of women from 1984 to 1989, just as she began her career in professional politics.
Her last few years as Delhi chief minister were marked with corruption scandals, especially forirregularities during the 2010 Commonwealth Games. She lost in assembly elections held in December 2013 to the Aam Aadmi Party led by Arvind Kejriwal. She served as the governor for the state of Kerala in 2014 but resigned five months later.
In the recent 2019 general elections, she ran as a Congress candidate from a Delhi constituency but lost to a BJP candidate, Manoj Tiwari.