Rapid industrialization has resulted in increased use of natural resources, which brought serious ecological and environmental imbalance due to heavy dumping of industrial wastes. Fly ash is such one of the dangerous industrial waste pollutants that cause air, water and soil pollution, disrupt ecological cycles and set off environmental hazards. The disposal of the increasing amounts of solid waste fly ash is becoming a serious concern to the environmentalists. Currently, more than 100 million tonnes of fly ash is being generated annually in India. Both in disposal as well as in utilization, utmost care has to be taken to safeguard the interest of human for better greener environment.