Biodeterioration processes result from complex interactions of surface-invading microbes with each other as well as with the surface material. Fungal ability in production of pigments and organic acids have crucial role in discoloration and degradation of monuments. Air acts as a vehicle for the dispersion of microorganisms. It introduces into air from different sources i.e. soil, water, organic waste of man, plant leaves, sneezes and cough. This investigation focuses on mycological survey of The Bhandedwal Temple of Arang. The 19 fungal floras were isolated. Aspergillus Alternaria, Penicillium, Curvularia, Cladosporium,Fusarium,Mucor,Rhizopus, were dominant. During present study 165 fungal colonies were observed.