India, May 27 -- Sachin Nangaokar, 36, a constable with the Mumbai traffic police, spends at least 10 hours a day near the Sion flyover in Chunabhatti, directing traffic while inhaling exhaust fumes. On Tuesday afternoon, as Nangaokar gestured at a mini tempo to penalise him, the vehicle's shadow gave him a brief respite from the sun as he wiped the sweat off his brow to write the challan. "We take any opportunity we get for shade, even if it is only for two minutes," said Nangaokar. Many VIP convoys pass through the busy stretch of highway that connects to Thane. "We have to stand at one spot for over 40 minutes when the convoys pass, which is tough in this heat," he said. "We wear caps to protect ourselves. Sometimes commuters offer water but we do not have an option but to stand on the road despite the heat." Mumbai traffic police has enforced strict guidelines for field cops - personnel over 50 are allocated indoor duties in peak afternoon hours, and assigned a 'buddy' or a warden to accompany them in case they feel dizzy in the heat....