Popular folk singer Sharda Sinha, who was undergoing treatment at All India Institute of Medical Sciences (AIIMS)-Delhi, died on Tuesday night. She was 72. "Sharda Sinha expired at 9.20 pm due to refractory shock as a result of septicemia," an AIIMS official said. Sinha was known among her fans for folk songs such as "Kartik Maas Ijoriya" and "Koyal Bin" as well as Bollywood numbers "Taar Bijli" from "Gangs of Wasseypur- II" and "Babul" from "Hum Aapke Hain Koun". Earlier, AIIMS said Prime Minister Narendra Modi is continuously monitoring Sinha's condition and has prayed for her speedy recovery. Sinha, a Padma Bhushan recipient synonymous with folk songs in Bhojpuri, Maithili, and Maghahi languages, was on ventilator support following a health complication due to multiple myeloma, a form of blood cancer. The singer was admitted to the intensive care unit of Institute Rotary Cancer Hospital (IRCH), the cancer institute of AIIMS, last month. "Noted folk singer, Smt. Sharda Sinha i