हम RailFan - हमेशा पंखों पे

Mumbai CST Madgaon is 765km (chargeable distance) 588km real distance not 546.
You can’t add 40% more between Mumbai CST and junction of Central Railway & Konkon Railway Corporation as this part is not under Konkon Railway Corporation.But you must add 40 % more between junction of Central Railway & Konkon Railway Corporation and the place just 1 or ½ km after Surathkal which is another end point of Konkon Rly. Corp..
Distance between Mumbai CST and junction of Central Railway & Konkon Railway Corporation is 144.78km or 145 km approximately (real as...
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well as chargeable is same in this part because it is outside Konkon Rly. Corp.).
Chargeable distance between junction of Central Railway & Konkon Railway Corporation and Madgaon =(765-145)=620
140%=620
100% =(620/140) *100 =443km approximately(So, it is the real/ not chargeable distance between junction of Central Railway & Konkon Railway Corporation & Madgaon.)
So, real/not chargeable distance b2wn Mumbai CST & Madgaon = distance between Mumbai CST and junction of Central Railway & Konkon Railway Corporation(here real & chargeable distance are same) + REAL/not chargeable distance between junction of Central Railway & Konkon Railway Corporation and Madgaon(here real & chargeable distance are not same) = (145 + 443)km =588km