A field experiment was conducted at the Regional Research Station, B.A. College of Agriculture, Anand Agricultural University, Anand to study the response of summer rice (Oryza sativa L.) to plant geometry and age of seedlings under SRI methods. Plant geometry P1 (10 x 10 cm) was found significantly superior in increasing the growth parameters especially plant height measured at 30, 60 DATP and at harvest. Significantly higher number of total effective tillers hill -1 was recorded under plant geometry treatment P2 (20 x 20 cm) followed by the treatment P1 (10 x 10 cm). The yield and yield attributing characters viz., panicle length and number of grains panicle-1 were recorded higher under treatment P2 (20 x 20 cm) followed by the treatment P1 (10 x 10 cm). The grain yield (4,807 kg ha-1) and straw yield (6,898 kg ha-1) were observed higher under treatment P1 followed by the treatment P2. Treatment P1 recorded maximum net return (` 31,966 ha-1) with cost benefit ratio of 2.01, closely followed by treatment P2 which recorded the net return of ` 30,726 ha-1 with 2.05 CBR. Transplanting at 10-12 days age of seedlings significantly increased the plant height at 30, 60 DATP and at harvest which was found to be at par with treatment S2 (18-20 day). The highest values of total effective tillers hill-1, panicle length, number of grains panicle-1 were observed under treatment S1 (10-12 days). The same treatment also recorded maximum test weight, grain (4,771 kg ha-1) and straw yields (6,845 kg ha-1). Maximum net return of ` 31, 845 ha-1 was found in treatment S1 (10-12 days) with cost benefit ratio of 2.10, followed by treatment S2 (18-20 days) which recorded the net return of ` 29, 460 ha-1 with 1.99 CBR. Among different treatment combinations, the treatment combination P1S1 (10 x 10 cm coupled with 10-12 days age of seedlings) recorded the maximum net return of ` 34, 284 ha-1. For securing higher yield and net monetary return from rice variety Gurjari, it should be either transplanting with 10-12 days age of seedlings at plant geometry of 10 x 10 cm or 20 x 20 cm with one seeding hill-1 under SRI techniques.