Answer:
The social structure that was attributed to Hinduism and banned in 1949 was the caste system. The caste system is a hierarchical social structure that assigns individuals to specific social and economic classes based on their birth and occupation. This system has been widely criticized for promoting discrimination and social inequality, particularly against those considered to be of lower castes. In 1949, the Indian constitution banned discrimination based on caste and also made it illegal to practice untouchability, which is the social exclusion of certain castes deemed as impure or unclean. The caste system still exists in India, although it has been officially abolished, and many efforts are being made to address its negative impacts.