1. Indian Atlas : parts of Districts Chánda and Raipur and Native States of Bastar and Kánker, District Raipur and of Native States Patna, Kalahandi, Kánker, Bastar and Jeypore Maps University Of Minnesota Public content 1891. Survey of India. Additions to 1891."; "Continuation sheet, North 91 S.E. 320 x 102 Centimeters, folded to 21.5 x 13 Centimeters Scale 1:253,440 General Map Collection. Survey of India (Calcutta).