Biosulphidogenesis was examined in thermal waters, sediments and decomposing bacterial mats associated with Vajreshwari & Ganeshpuri hot springs, Thane. In vitro studies demonstrated biological sulphide production from sulphate at temperatures higher than 50°C but less than 85°C, correlated with the presence of a unique sulphate-reducing bacterium (TSRP- Thermophilic Sulphate Reducing Prokaryote). It showed complete reduction of sulpahte in 20 hrs with negligible production of sulphide. This new species proliferated at temperatures above 50°C but below 85°C, and had an optimum growth temperature of 60°C in anaerobic condition (The anaerobic condition was maintained by overlaying the media with Paraffin oil). The organism was a small gram-negative, straight rod, utilized lactate as electron donors and sulphate as electron acceptors for growth and forming sulphide, indicating presence of dissimilatory sulphate reduction mechanism. Other unusual biochemical features of this extreme thermophile includes tolerance to 1.5 % NaCl, lacked catalase activity and non motile. Strain TSRP is described as the type strain of the species Thermodesulfobacterium commune identified by 16s r RNA sequence analysis and phylogenetic relationship was found in between different OTUS which were determined by CLUSTALW. The assessment of the effluents collected from 3 industries viz., Textile, Battery, Paper & pulp; within the city zone of Thane showed high concentration of sulphate. These effluents were subjected to sulphidogenesis by T. commune & there was a complete reduction of sulpahte in 25,24,22 hrs. respectively with negligible production of sulphide. The study showed that T. commune can be used for treating effluent containing sulphate, thus important for bioremediation process with high efficiency of sulfate reduction rate and negligible production of sulphide.