Gandhi was accompanied by sitting MP of New Delhi constituency Ajay Maken, DPCC Chief Arvinder Singh Lovely and former Delhi Minister Harun Yusuf to the polling station in Nirman Bhavan in Central Delhi at around 9:30 AM.
She is a voter in the New Delhi constituency from where Maken contesting to retain the seat for the third consecutive term.
"We are confident of a better performance. People of Delhi will make us victorious" Lovely told reporters.
The other two prominent contestants in the constituency are BJP's Meenakshi Lekhi and Aam Admi Party's Ashish Khaitan.
Vice President Hamid Ansari was among the first few to cast his vote in the Nirman Bhavan polling booth.
Ansari reached the polling booth no 85 at around 8:30 AM.