aaj ke time me Mumbai Chennai 18 ghante me cover honi chahiye but nahi, 22159 Chennai Express 22ghanta leti hai, Jabki 75% route 130 hogaya hai. Aur unnecessary ke bohot halts hai. Atleast LHB Ya Rake Standardize kr rhe hai to Speedup bhi krna chahiye, Jitna Fare le rhe hai utna Service bhi dena chahiye.