Banker-turned-politician Meera Sanyal died on Friday after a brief illness.
Ms Sanyal, 57, had joined the Aam Aadmi Party after quitting her job as the country chief executive of Royal Bank of Scotland, and contested a Lok Sabha election in 2014.
AAP leader and Delhi's deputy chief minister Manish Sisodia confirmed her death in a tweet, saying the country has lost a sharp economic brain and a gentle soul.
In her 30-year-old banking career before surprising all by plunging into politics, the Kochi-born Sanyal had also served as the head of corporate finance and chief operating officer for ABN Amro for Asia.
She unsuccessfully contested the 2014 Lok Sabha election from Mumbai south constituency.
Meera Sanyal, Top Banker-Turned-AAP Leader, Dies After Battling Cancer Arvind Kejriwal Attends Mumbai Court In Unauthorised Rally Case On Kiran Bedi's Turf, AAP Reaches Out to Women Voters World's Largest Isolated Tribe Makes Rare Appearance In New Footage 4 Passengers Die As 12 Coaches Of Chandigarh-Dibrugarh Express Derail In UP Why BJP Lost Lok Sabha Polls In Uttar Pradesh - 6 Reasons In Party Report Sensex Breaches 81,000 Mark, Nifty Scales 24,800 Peak On IT, FMCG Gains 'Yodha' Is A Mammoth Documentation Of India's Wars And Battles Woman Dies After Jumping Off Elevated Platform At Delhi Metro Station: Cops Track Latest News Live on NDTV.com and get news updates from India and around the world.