In field grown cashew trees {Anacardium occidentale L.) net photosynthetic rate (Pn) was maximum in leaves grown in all four directions (East - E, West - W, South - S and North - N) between 11 to 12 h. Between 15 to 16 h, photosynthetically active radiation (PAR) and were higher in W than in other directions, however stomatal conductance (g^) and transpiration rate (E) were similar in all the four directions. Maximum was found in the leaves of middle portion of the tree. Irradiance was more important for than gs, intercellular CO2 (Q), and E which did not exeit significant differences at different directions and timings.