Field experiments were conducted to Studies effect of Phosphorus, Chloropyriphos and Rhizobium inoculants on growth parameters, yield components and yield of chickpea during rabi season of 2020-21 and 2021-22 at students instructional farm, Chandra Shekhar Azad University of Agriculture & Technology, Kanpur. The experiment consist of 18 treatments combinations in factorial randomized block design with three replications consisted of three levels of phosphorous (30, 60 and 90 kg ha-1), three chloropyriphos levels (0, 2.5 and 4.0 ml L-1) and two rhizobium inoculation levels (with rhizobium and without rhizobium). Chickpea variety RVG-203 was grown with the recommended agronomic practices. On the basis of results emanated from investigation it can be concluded that among the growth parameters maximum plant height at 90 DAS is 40.34 cm and 39.96, maximum number of branches is 17.48 and 17.82 during the both years of experimentation are associated with the treatment T18 [90 kg P+ 4.0 ml-1 Chloropyriphos with Rhizobium] and maximum number of nodules per plant at 60 DAS during first year is 26.53 and second year is 26.96 was associated with the treatment T15 [60 kg P+ 4.0 ml-1 Chloropyriphos with Rhizobium]. Similarly, among the yield components and productivity parameters maximum values in relation to number of pod plant-1, number of grain pod-1, 100 grain wt. (gm), grain yield (q ha-1), stover yield (q ha-1), biological yield (q ha-1) except harvest index (%) was also found in the treatment T15 [60 kg P+ 4.0 ml-1 Chloropyriphos with Rhizobium].