A field experiment was carried out during kharif 2017 at Agro-forestry unit, ZARS, UAS, GKVK, Bengaluru to know the response of groundnut to nano boron nutrition. There were 12 treatment combinations consisting different levels and application methods of borax and nano boron laid out in Randomized block design with three replications. The soils of the experimental site was red sandy loam having neutral pH, low electrical conductivity, and medium in available nitrogen, phosphorus, potassium and boron content. The results showed that, seed priming with nano boron @ 300 ppm fb foliar application of nano boron @ 600 ppm at 30 DAS recorded significantly higher pod yield, kernel yield, pod yield per plant, test weight and shelling per cent (1820 kg ha-1, 1324 kg ha-1, 15.98 g, 30.23 g and 72.8 %, respectively). Whereas, seed priming with borax @ 0.2 % fb foliar application of nano boron @ 300 ppm at 30 DAS recorded significantly higher oil yield of groundnut (730.3 kg ha-1) and growth attributes like leaf area, leaf area index and dry matter production at 90 DAS (1541 cm2, 5.14, 28.7 g plant-1, respectively). Higher net returns obtained in treatment consists of seed priming done with 0.2 % borax fb foliar spray of nano boron @ 300 ppm at 30 DAS (Rs. 43590 ha-1).