Multidimensional concept of human development is enlarging people of choice. In this study estimate social inequality in human development across social groups in Karnataka. Karnataka was one of the socially backwords state the reason for lack of resource. This study using secondary data drown form estimate NSSO 61st and 68th round data 2004-05 to 2011-12 and human development report (KHDR-2015). Study estimates district and division wise or sub-state level estimate inequality or variation across social groups. Study taken four administrative divisions Kalaburagi, Belagavi, Mysore and Bangalore divisions. This study mainly taken socio-economic indicators for household education level, occupation, land ownership, ration cards and cooking fuel for measuring inequality. This study classified social groups are Schedule caste (SC), Schedule Trib (ST), Other Backward caste (OBC) and Others casts. Results of the study the Kalaburagi division was most backword and more social inequality division Bangalore division was developed division in the state.