The study deals with the survey of the pollen grains at Korba an industrial town of Chhattisgarh. The study aimed to understand the pollen spectrum present in air, which is further helpful in study of allergic diseases. The study was carried out from March 2007 to February 2008. During the study air samples were taken by Rotorod air sampler using Vaseline coated slide. After sampling slides were mounted with glycerin-jelly and scanned under microscope. A total of 40 indigenous and exotic pollen type were obtained in which indigenous dominating ground flora are Cynodon dactylon (9.42 %) and Ocimum sanctum (7.13%) while exotic species along with exotic plants Parthenium hysterophorus (8.43), Cassia siamea (4.98), were obtained contributing maximum percentage of total pollen catch. Presently, alternation of primary vegetation in to industrial townships and planting exotic tree species has been considered to understand the biological relationship with human environment. Some pollen as Ageratum, Ailanthus, Amaranthus, Carica, Parthenium, Eucalyptus and many are allergic. During the study November 2007 is the month of highest occurrence where as, June 2007 and February 2008 is the month of lowest occurrence. In Korba city, the bio-particles particularly pollen grains which vary for their types, numbers, in different seasons has not been studied, therefore present study has been conducted for effective control of atmospheric particulate pollution.