Jese train rake ko PM ke liye uske CDO me kuch fixed kilometre ke bad jana padta hai
Wese hi loco ko b uske shed me jana padta hai.
To LSA ke bina possible nhi hoga ye
For eg gangaur or Ranthambore ka Lsa hai
Gangaur...
more... jo loco swm leke aati hai use Ranthambore Indore lejati hai, or next day wapis lati hai, fir swm se wapis Gangaur mumbai lejati hai, or wha se BRC jata hai for maintenance