Mumbai, Feb 07 (ANI): Union Finance Minister Nirmala Sitharaman expressed condolences on Chamoli tragedy, where 100-150 casualties are feared after water level rose in Dhauliganga river after a glacier burst. “It is a kind of tragedy which is very shocking. It's a natural disaster. Home Minister has assured that every help the Uttarakhand government would need will be extended. There shall not be any hesitation on that,” said Nirmala Sitharaman.