The delhi metro is taken place of auto and city buses. its service is very good and there is no air pollution and no bad effects on the health of passengers. in this cc tv camera are very useful and speaking system is very good to know the place easily. it’s service is very attractive and it doesn’t take time to reach the passengers on his place. the train comes and go after and after 2 minutes. the passengers can’t wait more on the station. by this it is very easily to reach from one place to another at a very low period of time. I likes the service of delhi metro. and they give more and more security of passengers and more services to passengers and one of the service is travel card after you bought metro card you will no require to stay in line for ticket. and the card saved your money and give discount to the passengers who have a metro card. I always ride in the delhi metro to reach on time in Gurgaon and Faridabad. I advice to all the passengers use delhi metro to reach from one place to another. by this you can reach any place in delhi, Gurgaon, Faridabad. I always recommend to use only delhi metro.