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In the present work bagasse (B) i.e waste of the sugar industry, was fed to  Eisenia fetida  with cattle dung (CD) support as feed material at various ratios (waste: CD) of 0:100 (B 0 ), 25:75 (B 25 ), 50:50 (B 50 ), 75:25 (B 75 ) and 100:0 (B 100 ) on dry weight basis. Co-composting with cattle dung helped to improve their acceptability for  E. fetida  and also improved physico-chemical characteristics. Best appropriate ratio for survival, maximum growth and population buildup of  E. fetida  was determined by observing population buildup, growth rate, biomass, mortality and cocoon formation. Minimum mortality and highest population size of worms was observed in 50:50 (B 50 ) ratio. Increasing concentrations of wastes significantly affected the growth and reproduction of worms. Nutrients like nitrogen, phosphorus and sodium increased from pre-vermicompost to post-vermicompost, while organic carbon, and C:N ratio decreased in all the end products of post-vermicomposting. Heavy metals decreased significantly from initial except zinc, iron and manganese which increased significantly. Scanning electron microscopy (SEM) was used to recognize the changes in texture in the pre and post-vermicomposted samples. The post-vermicomposted ratios in the presence of earthworms validate more surface changes that prove to be good manure. The results observed from the present study indicated that the earthworm  E. fetida  was able to change bagasse waste into nutrient-rich manure and thus play a major role in industrial waste management.

Potential utilization of bagasse as feed material for earthworm Eisenia fetida and production of vermicompost