The study has reported the impact of training on lac growers in terms of host utilization, livelihood conditions and income and employment generation. The study is based on the data collected from randomly selected 500 lac growers (trained and untrained) in the Ranchi and West Singhbhum districts of Jharkhand in the years 2003-04 and 2004-05. The host utilization has been found to increase significantly after training of lac growers in comparison to untrained lac-growers for all the three hosts, viz. palas (Butea monosperma), ber (Zizyphus mauritiana) and kusum (Schleichera oleosa). A significant shift from lower production group to higher production group has been observed by trained lac-growers. The share of lac income in total income has increased in the case of trained lac-growers from 18.5 per cent to 24.0 per cent. More employment generation and increase in net returns have been found in lac cultivation on all the three hosts for trained lac-growers. Higher level of broodlac (seed) production has resulted in self-sufficiency in broodlac and more utilization of host trees for lac cultivation. Higher BC ratio and reduction in cost of production of broodlac and sticklac have been found in trained than untrained lac-growers for lac cultivation on all the three hosts. The study has emphasized on the need of strengthening and widening the extension activity to empower the lac growers with scientific knowledge on lac cultivation for increasing their income level.