Industrial chemistry in the new millennium is widely embracing the concept of "green chemistry" to meet the fundamental scientific challenges of protecting the human health and environment while maintaining commercial success. This emerging area of Green Chemistry is defined as "the utilization of a set of principles that reduces or eliminates the use or generation of hazardous substances in the design, manufacture, and application of chemical products" and envisages minimum hazard as the performance criteria while designing new chemical processes. One of the thrust areas for achieving this target is to explore the generation of efficient catalytic processes, particularly nano-catalysis . The desired approach may encompass alternative activation methodology, such as mechanochemical mixing, photocatalysis, microwave-, and ultrasonic irradiation . Additionally, the strategy has to follow "benign by design" principles and make an effort to utilize renewable resources wherever possible .