Kishore Kumar's first wife, Ruma Guha Thakurta has passed away on Monday in her residence in Kolkata at the age of 84. She was suffering from old age-related ailments. Apart from working in Hindi and Bengali films, she had also worked in an English film, The Namesake. She was also a playback singer and founded the Calcutta Youth Choir, a song and dance troupe, in 1958. West Bengal CM Mamata Banerjee shared condolences.