Butibori-Umrer (30 kms) 1965
This Rahul got from CR website the link is here ( copy and paste in your browser)
www.crconstruction.org/project1.asp
Now see the distance KM of section which shows only 30 KM.
But...
more... the passenger trains which runs via NGP is AS follows.
Butibori to Nagpur is 28 KM
Nagpur to Umred is 56 Km
Total 84 KM
And a new line was constructed as per CR website in 1965 which is just 30 KM from Butibori to Umred.
He may know this but his query was why there is no train in a shorter route just like some of train goes via Chandafort from BPQ to NAB and some train goes in a longer route to NAB via BPQ-NGP-NAB
Or
He may have found after asking his query that Umrer is Umred in IR. Only Rahul can give the answer.