Bahujan Samaj Party State coordinator and former DGP of Andhra Pradesh J. Purnachandra Rao on Saturday asked the State government to take up caste census immediately as around 200 castes of backward classes and Scheduled Castes could not get representation in legislature in the seven decades. Along with BSP State president B. Paramjyothy, he released a book ‘Kula Andhra Pradesh’, …