A comprehensive investigation was performed to know the processing technology and salient features of the rice mill wastewater in the district of Raipur, Chhattisgarh. The production capacity of the rice mill was 240 million metric tons per day (MT/day). The characterization of the wastewater divulged a high concentration of biochemical oxygen demand (3,518 mg/L), chemical oxygen demand (5,265 mg/L), total hardness (2,240 mg/L as CaCO3), total solids (3,928 mg/L), total organic solids (3,008 mg/L), and a chloride content (748 mg/L) as well as a moderate concentration of sulfate (71 mg/L), orthophosphate (76 mg/L), sodium (69 mg/L), volatile fatty acids (307 mg/L), total inorganic solids (921 mg/L) and total suspended solids (953 mg/L). The wastewater had an acidic pH (5.24) with low concentrations of oil and grease (17 mg/L), nitrate (21 mg/L), phenols (14.7 mg/L), and dissolved oxygen content (1.2 mg/L). Furthermore, the wastewater was enriched in sodium (69 mg/L), potassium (495 mg/L), lignin (148 mg/L), and calcium hardness (1,906 mg/L). The overall wastewater characteristics do not meet the norms of discharge standards for industrial effluents on the land surface for irrigating agricultural crops or into the surface water bodies.