Maximum plant height (102.7 cm), number of branches per plant (6.4), number of fruit per plant (91.9) and fruit yield (665.0 q/ha) was observed under the treatment normal planting, i.e., planting on single side of the ridge at a spacing of 60×45 cm, with 90% of the surface area covered with black polythene mulch, whereas, least fruit yield was recorded where planting was done in paired rows, i.e., planting both side of the ridges at a spacing of 120×45 cm, without mulch. The study further elucidated that use of mulch in normal planting treatment (spacing 60×45 cm with 90% surface area covered with black polythene) significantly reduced weed population (54.6 m²) as compared to without mulch, and similar trend was observed in respect to weeds dry weight. The economic analysis of study showed a cost benefit ratio of 1:2.12 when tomato was planted at normal spacing along with 90% of its surface area covered with black polythene mulch.