SAMBALPUR: Closure of Orient Paper Mills (OPM) at Brajrajnagar proved bane for some and boon for others. The shutdown of OPM way back in 1999 left many people jobless, but it continues to benefit farmers with the Paper Mill Sludge (PMS) left behind by the mill helping farmers strike right pH balance. The use of PMS has helped the farmers which is also reflecting on the productivity.