The way we are teaching in the university must be checked. Why our graduates when they are holding important positions they are not doing a good job. The know but no actions. May be when they were in the university they are not honest in making the assignments. In case of river pollution, they know rules and regulations but still we have illegal factories on the river bank and released untreated effluents in to the rivers. We taught them on bioindicators for chemiical pollution or ecological changes. They probably got A but when they are given authority they cannot perform. no integrity probably..