you are welcome,,eventhough the subject is not related to my profession i could observe there is lot of difference between in wiring which clearly you can watch in kirundal yard (a ghat line from kottavalasa to kirundal a 444 kms line exclusively laid for bringing iron ore ,kirundul/bailadilla (which was in bastar district when not seperated from mp) now it is in chattisgarh) some stations you can find ,,like kirundul,bacheli,bhansi,kamalur,dantewara (upto this point lot of iron ore deposts available.with gods gift of two rivers called sankhani and dankhani very very sweet water, one river water is full red due to iron ore washing and not suitable for drinking.a sanghamam at dantewara where you can find a temple called danteswari ,,a kali temple.worth watching