sentences:  His magnum opus, "The Buddha and His Dhamma," incorporated Marxist ideas of class struggle into Buddhist views of dukkha and argued that Buddhist morality could be used to "reconstruct society and to build up a modern, progressive society of justice, equality, and freedom".The conversion movement has generally been limited to certain social demographics, such as the Mahar caste of Maharashtra and the Jatavs.Although they have renounced Hinduism in practice, a community survey showed adherence to many practices of the old faith including endogamy, worshipping the traditional family deity etc.