Sheet J13,14,18,19 Maha-Oya. Military Series 59. Surveyed in 1900-23. 1st Revision 1936-37. SDC Reprinted. Reprinted Dehra Dun 1942 (May). Reg.No.34. X.D.D.42'6,200. Grid.
Sheet J25,K21,M5,N1 Tirrukkovil. Military Series 66. Surveyed in 1900-23. 1st Revision 1936. SDC Reprinted 28.3.42. Reprinted Dehra Dun 1942 (May). Reg.No.39. X.D.D.42'6,200. Grid.