A field trial was conducted during 2020-21 in rabi season at the Research Farm of Tirhut College of Agriculture, Dholi, Bihar to compare the performance of the foliar application of nutrients on lentil (Lens culinaris Medik.) as relay crop in rice. An experiment was laid out in a Randomized Block Design with three replications having ten treatments. Two foliar applications of 0.5% NPK @ 19-19-19 + 0.5% ZnSO₄ at pre-flowering and pod initiation stages produced significantly higher yield attributes like pods plant^-1, 100 seed weight and finally grain yield followed by 2% DAP + 0.5% ZnSO₄. The former treatment was also found best in terms of Gross Return (` 75327 ha<sup>-1</sup>), Net Returns (` 46361 ha^-1), and Benefit: Cost Ratio (1.60) over rest treatments. Conclusively, lentil should be grown by two foliar sprays of 0.5% NPK @19-19-19 + 0.5% Zinc Sulphate along with 100% of the Recommended doses fertilizer to enhance its productivity and profitability.