Emerging recalcitrant organic pollutants in wastewater impose a global environmental concern that necessitates creation of novel materials or treatment techniques. Various conventional methods were used for removal of organic pollutants, but photocatalytic mechanism is simply cost-effective and green approach. Herein synthesis of N-doped nickel ferrite chitosan-coated nanocomposite (N-NFC) via co-precipitation method using A. indica plant leaves-extract for degradation of Alizarin-dye (AR) and Metribuzin-herbicide (MTB). Powder X-ray-diffraction peaks and electron-microscopic-analysis verified the semi-crystalline nature of composite with 17.99 nm crystalline size, and spherical morphology showed the successful decoration of chitosan around metal oxide. Surface-area-analysis revealed mesoporous characteristics of N-NFC, with increased surface area (107 m