The Delhi Metro may be expensive but it is the most efficient means of transportand is a boon for those who use it.Even those who use cars prefer to take the metro.It is clean and there is no blaring music which passengers who travel in buses have to put up with. I have lived in this city for 42 years,using public transport for 35 of those years and I maintain that the metro is infinitely better than our bus service. Give credit where it is due and stop carping about costs.Our elected representatives cost more and contribute less.