Three sets of questions pertaining to general aspects, diagnosis and treatment and, preventive aspects of TB were introduced to the general population, in Jaipur, to assess the extent of their knowledge about TB. A total of 1,000 persons, consisting of 740 males and 260 females, were interrogated in this survey. 380 belonged to rural areas and the rest to urban areas; 860 persons were literates and 140, illiterates; 650 came from a low socio-economic group in comparison to 350 from a better economic status. Responses in all the three sets were separately categorised as correct when more than 50 percent of the answers were correct. Analysis of all the answers was correlated with socio-economic factors. Though the urban population had better knowledge about general and diagnostic aspects of TB, both populations were poorly acquainted with its preventive aspects. General knowledge about TB was poor in the illiterate, low socio-economic population and high in the literate, high socio-economic group.