A field study was conducted during rabi 2020-21 at ICAR-KVK, UAS, Raichur (16Ë%125 N, 77Ë% 205 E and 389 m)with an objective to assess the effect of foliar sprays of nano N and nano Zn on growth and yield of sweet corn crop. Theexperiment was laid out in the Randomized Complete Block Design (RCBD) with thirteen different nutrient treatmentsconsisting of chemical nano nitrogen, chemical nano zinc and green nano zinc along with two recommended dose of fertilizerand absolute control treatment. The fresh cob yield (158.1 q ha-1) and green fodder yield (214.5 q ha-1) were significantlyhigher with application of 75% N, 100% P & K + foliar application of chemically synthesized nano N @ 4 ml/l andchemically synthesized nano Zn @ 2 ml/l. at 25 and 50 DAS, respectively. The magnitude of improvement in fresh cob yieldwas up to 18 per cent as compared to recommended dose of (150 kg N, 75 kg P2O5 and 37.5 kg K2O ha-1). Plant height(225.7 cm), green leaves per plant (12.60), leaf area (7130 cm2 plant-1), leaf area index (5.94), total dry matter accumulation(295.2 g plant-1), SPAD (61.74) and NDVI (0.80) values were significantly influenced by foliar application of nano nitrogenand nano zinc. Nitrogen uptake (246.2 kg ha-1) was higher with 75% N + foliar application of chemically synthesized nanoN @ 4 ml/l and chemically synthesized nano Zn @ 2 ml/l at 25 and 50 DAS, respectively This also recorded significantlyhigher gross returns ( 1,26,503 ha-1), net returns ( 77,928 ha-1) and B : C ratio (2.60). It was concluded that applicationof 75 % N, 100 % P & K + foliar application of chemically synthesized nano N @ 4 ml/l and chemically synthesized nanoZn @ 2 ml/l at 25 & 50 DAS, respectively was found optimum for sweet corn.Key words: Foliar spray, Nano-urea, Nano-Zn, Sweet Corn