Digested Assam lemon waste was subjected to biomanure production with appropriate concern on carbon emission through biocircular economy concept. For the biomanure production digested waste was treated with different cyanobacterial cultures such as Anabaena variabilis, Aulosira fertilissima, Cylindrospermum muscicola, and Fischerella muscicola. Among all the strains F. muscicola was found to be most efficient in N, P and K enrichment and bioavailability where 2.88, 2.00 and 2.16 folds increase in N, P and K content has been recorded. The produced enriched biomanure was applied solely and in combination with inorganic fertilizer to find out the best treatment condition towards soil enrichment vis a vis mung bean (Vigna radiata) production. Combination of inorganic fertilizer and produced biomanure exhibits good results where the yield of the mung seed was enhanced by 2.02 folds. Application of biomanure in the crop field could maintain the soil physico-chemical properties.