Wo sare trains ke sath nhi hai
Smay pr nhi aaye ese eloco se or diesl se aa gyi
Ye controller pr bhi depend hai
Train ko kitna aacha se chala rhe hai
Es trian...
more... ke ka time rajdhani or sf traino ke hai roj Ot krti hai esko
Pr jo fact h wo hai
Eloco acceleration speed dloco ke mukabe aacha deti hai