The study was conducted at Regional Research Station, Karnal during 2022 in kharif season. Nine treatments- T1 : control (no recommended dose of nitrogen (RDN)), T2 : 100 % RDN through urea (150-60-60 kg ha-1), T3 : 100 % RDN (three foliar spray of nano-urea at 15, 30 and 45 days after sowing (DAS)), T4 : 100 % RDN (50 % as basal by urea + one foliar spray of nano-urea at 45 DAS), T5 : 100 % RDN (50 % as basal by urea + two foliar sprays of nano-urea at 30 and 45 DAS), T6 : 75 % RDN (50 % as basal by urea + one foliar spray of nano-urea at 45 DAS), T7 : 75 % RDN (50 % as basal by urea + two foliar sprays of nano-urea at 30 and 45 DAS), T8 : 50 % RDN (50 % as basal by urea + one foliar spray of nano-urea at 45 DAS) and 50 % RDN (50 % as basal by urea + two foliar sprays of nano-urea at 30 and 45 DAS) were laid out in randomised block design (RBD) with 3 replications. Highest number of cobs/meter row length (4.7 cm), number of cobs (000 ha-1) (63.0), number of grains/cob (453.3) and 1000-grains weight (32.0) was recorded by 100 % RDN through urea. Highest grain yield (76.5 q ha-1) was recorded by 100 % RDN through urea which was statistically on par with 100 % RDN (50 % as basal by urea + two foliar sprays of nano-urea at 30 and 45 DAS). Highest protein content (11.4 %) was recorded with 100 % RDN through urea. Maximum gross returns (₹ 146899 ha-1), net returns (₹ 78450 ha-1) and benefit : cost (B : C) (2.08) were recorded with 100 % RDN through urea. This study recommends combined application of urea and nano urea for better productivity and profitability.