A field experiment was conducted during rabi (winter) season of 2004-05 and 2005-06 to study the heat and radiation use of chickpea cultivar in sandy loam soil at Faizabad,(Uttar Pradesh, India). The experiment consisted of three sowing dates viz sowing on Oct 20, Nov 05 and November 20 with four varieties viz. K-850, Awarodhi, Uday and Radhey. Results revealed that sowing on Nov 05 produced significantly higher yield attributes as well as related higher heat and radiation use efficiencies. The dry matter accumulation and number of branches/plant were higher in K-850 followed by Radhey while their lower values were obtained in Uday variety of Chickpea. Day temperature was highly correlated (R2=0.79) with dry matter than night temp. (R2=0.68). Highest dry matter was recorded at day temperature 29.4 oC, night temp. 22.4 oC and average temp. 25.9 oC.