[en] This paper discusses, both the techniques that are presently used in India and those that have the potential for use in the field of Bioassay monitoring. These techniques can also be employed for the measurements of actinides in air, and other biological and environmental samples. Neutron Activation Analysis (NAA) appears to be the most sensitive technique for determination of ²³²Th and ²³⁸U in bioassay samples at levels well below the DRL. FTA appears to be the only adequately sensitive technique (about 1000 times more sensitive than alpha spectrometry) presently available to detect Pu in bioassay sample at levels below DRL. HR-ICP-MS can also be used to measure plutonium in bioassay samples below DRL but the prohibitive cost and the complexity of analysis renders the technique impracticable for routine analysis. These techniques, therefore, require to be developed, standardized and exploited for internal dosimetry purposes