New Delhi, May 8 -- India started reopening its factories on Monday after spending more than a month in strict lockdown, a measure that helped contain the coronavirus outbreak but brought the economy to its knees. But challenges loom. Workers and materials are difficult to find. Logistics is a headache and demand in many categories has all but vanished. Still, several companies, ranging from car maker Hyundai Motor India Ltd to twowheeler manufacturer Hero MotoCorp Ltd, to consumer appliances major Whirlpool of India said they will be restarting operations gradually from this week, as the government eased lockdown curbs to allow companies to reopen in green zones-areas that are covidfree for more than three weeks. The loosening of curbs bas...