Which one is the only constituency from where N. T. Rama Rao defeated in an assembly election

Kalwakurthy is the only constituency from N. T. Rama Rao defeated in an assembly election. It is part of Nagarkurnool Lok Sabha constituency. Gurka Jaipal Yadav of Telangana Rashtra Samithi won the seat with majority of 3447 in the 2018 Assembly election. NT Rama Rao, founder of the Telugu Desam Party, lost from this constituency when he was defeated by Chittaranjan Das of Congress in 1989 elections.