Abstract: An experiment to study the effect of different irrigation levels on the yield of cotton (Gossypium hirsutum) under two sowing methods was conducted at the Agronomic Research Area, University of Agriculture Faisalabad. The treatments were consist of (A) two sowing methods viz. (I) flat sowing, (ii) ridge sowing and (B) six irrigation levels viz., irrigation during vegetative growth (1 irrigation; missing last 5 irrigations), irrigation during vegetative growth and flowering (3 irrigations; missing last 3 irrigations), irrigation up-to boll formation (4 irrigations; missing last 2 irrigations), irrigation from flowering till maturity (5 irrigations; missing first 1 irrigation), irrigation from boll formation till maturity (3 irrigations; missing first 3 irrigations), irrigation at all stages (Normal 6 irrigations). The experiment was laid out according to RCBD in split plot arrangement with three replications and net plot size was 2.25x6 m. Data on yield characteristics of the crop were collected using standard procedures and analyzed statistically by using Fisher`s analysis of variance technique. Least significance difference (LSD) test at 0.05 levels was applied to compare the differences among significant treatment means. I6 produced maximum (2406 kg ha-1) seed cotton yield, which was significantly higher than all treatments. In treatment I4 seed cotton yield (2217 kg ha-1) was significantly higher than I3 (2098 kg ha‑1) and I5 1362 kg ha-1. The minimum yield (887 kg ha-1) was recorded in I1.