Coir pith, a ligno-cellulosic material formed during the extraction of coir fiber from coconut husks, accumulates as a waste material from coir processing factories causing environment and disposal problems. Naturally coir pith is rich in potash but low in nitrogen and phosphorous. Also it has very high amount of lignin and C: N ratio which makes composting process difficult and slow. Hence an attempt was made to isolate and identify the fungal species from soil collected from sewage treatment plant of PSG college of Arts and Science, Coimbatore. This study was also carried out to assess the coir pith composting efficiency of fungal species. The results of the study revealed that three fungal species were isolated and identified as Aspergillus flavus, Aspergillus tubingensis and Aspergillus parasiticus by its spore and molecular characteristics. Among these three fungal species Aspergillus flavus and Aspergillus tubingensis were used for the coir pith composting along with Panchagavya as natural additives. The compost quality was better in the combination of coir pith with Aspergillus tubingensis than Aspergillus flavus combination
