Khairatabad: Hyderabad Metropolitan Water Supply and Sewerage Board (HMWS&SB) celebrated the 73rd Independence Day with nationalistic fervour at the Khairatabad head office on Thursday. HMWS&SB Managing Director M Dana Kishore unfurled the tri-color flag in the presence of employees of the board. It was followed by patriotic songs sung by the employees. Dana Kishore wished everyone on the occasion of 73rd Independence Day. Water Board Executive Director M Satyanarayan, director D Sridhar, Operations director P Ravi, finance director Vasudev Naidu were present.