Paddy is grown by transplanting under wetland conditions or by direct sowing, depending on the availability of water. In India, mechanical transplanters were developed and are now popular among farmers, but adoption is low. The experiments were conducted at six locations representing three soil types (sandy clay loam, sandy loam, and clay loam) of the delta zone of Tamil Nadu during Samba season in Strip plot design in three years (2019-2020, 2020-21, and 2021-2023) with the objective to evaluate the performance of existing models of rice transplanters in different soil types, to evaluate the performance of existing models of power weeders in different soil types, and to reduce the cost of cultivation and enhance rice production. Among the transplanters, higher field efficiency of 74.46, 79.08, and 77.71 was recorded by 8-row riding type transplanters (30x12cm) in sandy clay loam, sandy loam, and clay loam soils, respectively. Field efficiency was higher in single-row power weeders compared to double-row power weeders and manual conoweeders in all soil types. The Cono weeder recorded a low weed count and higher weed control efficiency (73.01) when compared to single and double row power weeders. Among growth and yield parameters, 6 row transplanters along with conoweeding combinations recorded higher tillers and productive tillers (16.28 and 20.65 per hill), number of filled grains (113 and 145 per panicle), and seed yield (5922 and 5733 kg/ha), respectively, in Sandy clay loam and Sandy loam soil. Eight row riding type transplanter (30x12 cm) along with single row power weeder combination was recorded higher productive tiller (15.25/hill), filled grains (122/panicle), and seed yield (5506 kg/ha) in clay loam soil. Among different transplanters and weeders, a 6-row transplanter along with conoweeding achieved a higher net return (Rs. 70195/ha) and BCR (2.62) in sandy clay loam soil. Similarly, the 6-row transplanter, along with conoweeding, achieved a higher net return (Rs. 55343/ha) and BCR (2.28) in sandy loam soil. whereas an 8-row riding type transplanter (30x12 cm) along with a single-row power weeder.