Meera Sanyal, eminent banker who later entered politics and joined the Aam Aadmi Party, passed away at her residence on Friday evening. She was 57, the party said.
Ms Sanyal was suffering from cancer for the past two years.
"It is with profound sadness that I share the heart breaking news that my colleague, my leader, Meera Sanyal is no more. I have never met a more graceful, dignified person and share the deep pain that her family must be going through right now. I pray they have the strength to bear her loss," Preeti Sharma Menon, a member of the Executive Committee of the Aam Aadmi Party, said in a statement.