We investigated the diversity of AM fungi in Dalli-Rajhara (Chhattisgarh, India) mine overburden (OB) dump and compares with natural forest soils of adjoining areas. Soil samples were collected from rhizosphere region of planted and naturally growing tree species in mine OB dump. AM spore was isolated by wet sieving and decanting and sucrose floatation method, spore density (per 100g dry soil) was calculated. | Species diversity of arbuscular mycorrhizal AM fungi in Dalli-Rajhara iron mine overburden dump of Chhattisgarh Central India