In areas where irrigation water is not a big problem the Rice-wheat cropping system is being adopted by farmers of Haryana and some other state in India as this cropping sytem has least possibility of crop failure, better minimum support price and easy marketing of produce. Due to continuous increase in the cost of different agriculture inputs i.e., seed, fertilizers, pesticides, diesel, labour etc. farmer's income per unit area is decreasing day by day due to stagnation in yield per unit area of different crops. To overcome this problem, on-farm trials were conducted by CCSHAU, K.V.K. Panipat during the year 2016-17 and 2017-18 on relay cropping/intensive cultivation of wheat and muskmelon. Average yield (34q/ha of wheat+56q/ha of muskmelon) and net returns per hectare (D. 115000.00 and 120500.00) were higher under relay cropping system as compared to sole crop of wheat (45 and 46 q/ha) and muskmelon (81 and 88 q/ha) during both the years, respectively. Net returns per hectare (D. 0500.00 and 102900.00) were recorded higher under ten channels of muskmelon per 0.4 hectare as compared to 8 and 12 channels per 0.4 hectare during both the years. Transplanting of muskmelon seedlings on 10th February was found most profitable over 17th and 24th February during both the years.