Definitely Mysore sir , Reason is the level of commitment and dedication is incomparable, right from low rung employees like Key man. That makes Mysore division a class apart. Even last year Mysore division got the award for best maintained rake. IMO , Mysore division has no competitors in SR + SWR combined. They have brought the innovative ideas like wax coating exterior for coaches. First Blind Friendly train in India was from Mysore, MYS has set pure treated drinking water and emergency medical care centre before Hubli, MYS railway station is India's visually impaired friendly and many more. These achievements are something which are too hard to achieve. Reg , cleanliness of MYS Station and the city , i need not say anything , whole nation knows. . Last but not least , Mysore has won the efficiency shield for most number of times , i think 6. ...
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In My humble opinion , Mysore should have been the HQ of SWR ( I Know I'm too greedy but I'm sure Mysore would have performed better than Hubli ).