Vegetables are the prime source of vitamins and minerals. As the population increases there is also increase in demand for nutritional vegetables, but in the conventional method of horticulture the production and productivity is considerably less. Thus to increase the productivity and to feed the over burgeoning population there is a need for novel fertilizers such as Nano fertilizers. An experiment was hence conducted in Chinapettai village, Panruti to investigate the Foliar application of Nano nutrients (Nano Nitrogen, Zinc and Copper) on yield of Capsicum. The experiment was carried out in RBD design (Randomized block design) with three replications and thirteen treatments. Results showed that the treatment with 100% RDF (P:K) + 100% Nano N + Nano Zn + Nano Cu followed by 25% RDF -N : RDF (100% P:K) + 75% Nano N + Nano Zn + Nano Cu and 50% RDF -N : RDF (100% P:K) + 50% Nano N + Nano Zn + Nano Cu recorded maximum growth parameters. In contrast 50% RDF -N : 100% RDF (P:K) + 50% Nano N showed increase in yield than the control (100% RDF (-N: -P: -K) (250:150:150kg/ha)) to conclude that Nano nitrogen could have compensated the 50% urea recommendation in conventional fertilizer and also had enhanced effect than control.