I stayed in mumbai for only 10 odd days and those were enough for me to realise that local trains abt which bombay boasts about are really a sign of low standard of living to which mumbai people have become used to. first of all trains are jam packed the whole day....u are all dressed up to go and by the time u reach ur destination already 1 hour late, ur clothes are also crumpled. no matter how much 24 hr intensive deo u use, u r bound to smell bad after a ride in the train. so people I agree that it is the fastest way to commute in mumbai but its also one of the worst in terms of condition of travelling waise bhi bombay has no great roads so even ur cars dont travel well...