A field experiment was conducted at College of Agriculture, Prof. J.T. State Agric. University, Hyderabad, India, in rabi 2014-15 to study the effect of different stages and different heights of detopping on yield and yield components of maize hybrid DHM-117. The experiment was laid out in a randomized block design comprising of a factorial combination of three stages of detopping viz., D1-10 days after silking, D2 -20 days after silking and D3-30 days after silking and three heights of leaves detopping viz., L1- detopping up to two leaves, L2- detopping up to four leaves, L3 -detopping up to six leaves with a control and replicated thrice. The results revealed that, higher yield and yield components were recorded in control (no detopping) and it was significantly superior to all detopped treatments. However, it was observed that without considerable reduction in yield and yield attributes, higher grain yield and green fodder yield could be achieved with detopping at 20 days after silking (D2) up to 4 top leaves (L2).