10.22376/ijpbs.2019.10.1.p1-12 Volume 4 Issue 3 2013 (July - September) Environmental pollution is a global crisis. Since huge investment is required for the effluent treatment plant, various industries release the effluent to the environment without treatment. This leads to adverse effect on the environment. In this study, low cost and highly available plant materials were chosen for the treatment of paint industry effluent. Leaves of lessThan i greaterThan Prosopis juliflora, Nymphaea ampla, Annona squamosa, Manilkara zapota lessThan /i greaterThan and lessThan i greaterThan Moringa oleifera lessThan /i greaterThan were soaked in different solvents such as methanol, ethanol, chloroform and benzene and their phytochemical constituents were extracted. These extracts were used for treating paint industry effluent collected from Nagalkeni village, Pallavaram, Chennai. Among all the extracts, lessThan i greaterThan Nymphae ampla lessThan /i greaterThan had considerable reduction in chloride (169.96mg/l), sulphate (600mg/l), chromium(950mg/l) and nitrate (80mg/l). Ethanolic extracts of lessThan i greaterThan Prosopis juliflora lessThan /i greaterThan reduced more TDS (209mg/l) present in effluent. Methanolic extract of lessThan i greaterThan Annona squamosa lessThan /i greaterThan considerably reduced hardness (640mg/l) of waste water. S.SHARMILA, L.JEYANTHI REBECCA AND MD SADUZZAMAN Paint effluent, plant extract, Prosopis juliflora, Nymphaea ampla, Annona squamosa, Manilkara zapota and Moringa oleifera 678-686