THE mood is unusually black these days at Eastern Coalfields Ltd (ecl). One of West Bengal's oldest companies running 50 mines in the state and another 14 in Bihar, it has an accumulated loss of Rs 550 crore. The Centre has recently put off a proposal for closing it down. But for the company which holds the lifelines of nearly 73,000 employees, the postponement is like a reprieve before facing the firing squad.