The study summarizes radiological characteristics of Banduhurang open cast mine which includes qualitative and quantitative behavior of ²²²Rn concentration, external gamma radiation level over the mine pit as well as in its adjoining environment, long-lived alpha (LLa) activity concentration associated with the respirable size of ore dust and assessment of dose to the mine workers in 2006-2008. The investigations reveal that geometric means (c_g) of measured radon concentration were 36.39, 38.69, 26.64 and 24 Bq m^-3 with respective geometric standard deviations (c_g) were 1.52, 1.55, 1.36 and 1.68 Bq m^-3 and c_g of gamma absorbed dose rates were 0.54, 0.64, 0. 45 and 0.15 µGy h-with respective s_g were 1.63, 1.53, 1.52 and 1.72 µGy h-1 over the mine pit, ore yard, waste yard and in the surrounding environment within a 10 km radius to the mine, respectively. The c_g of LLa activity was observed to be 16 mBq m^-3 with s_g of 1.9 mBq m^-3. The annual mean effective dose equivalent received by the member radiation workers of Banduhurang mine was estimated to 1.41 mSv y^-1, which is about 7% of the prescribed dose limits of 20 mSv y^-1.