PALGHAR, Aug. 22 -- Four workers died and two others were critical after inhaling nitrogen gas that leaked at a pharmaceutical unit in Tarapur MIDC in Palghar district, on Thursday, officials said. The incident occurred at Medley Pharmaceuticals' factory in the industrial hub of Boisar. According to police and disaster management officials, nitrogen gas leaked from a reaction tank during the production of Albendazole, a medication used for the treatment of a variety of parasitic worm infections. At the time of the incident, 36 workers were present in the plant.P3...