NEW DELHI, Nov. 7 -- Sharda Sinha, also called 'Begum Akhtar of Mithila', was the melody behind Chhath Puja and many a celebration in the region - and outside it too. Her songs echoed with the sounds of generations of folk singers who came before her, her voice earthy and imbued with the memory of home. The singer died on Tuesday night following a long battle with multiple myeloma. It was just four days after her 72nd birthday on November 1. Wednesday is the first day of Chhath celebrations, a festival she was always associated with....