Southern Railway
South Eastern Railway
South Central Railway
South Western Railway
Pondicherry
Daman and Diu
Lakshadweep
Andaman and Nicobar
Bihar
Uttar Pradesh
Himachal Pradesh
Uttarakhand
85.5°E
86.5°E
84.5°E
82.5°E
Krishna
Chambal
Kosi
Sutlej