This paper presents details of the techniques, which are indigenous, need based, economical and developed by researchers at IIT Bombay, for investigating the impact of hazardous and toxic wastes on geoenvironment. Suchwastes, which inherently contain heavy metals, are being disposed of by various industries, thermal/atomic power stations and research facilities. The heavy metals leach out of the waste matrix, in due course of time due to their interaction with the geoenvironment, and contaminate it. Under these circumstances, the techniques presented in this paper have been found to be quite helpful in simulating and monitoring the spread and fate of contaminants in the geoenvironment. This paper also emphasizes the need of adopting these techniques for geomaterial characterization when it comes in contact with contaminants.