Delhi Metro is yet to reach satellite town like Noida, Ghaziabad, Faridabad and Gurgaon. I think a lots of commuters happen to travel either from Delhi to these towns or vice versa. So these commuters still lack this facility. Delhi metro should devise a plan to connect Delhi to these towns as soon as possible(not leave it till 2010) and also a cooridoor which can connect these town through Delhi. Considering upcomming towns like greater noida, plan should include connection to these kind of developing towns. Also Delhi metro must study, in which area the real estate development is going on and what will be the the impact on surface transport in those area for example indirapuram in ghaziabab which is very close to Noida and Delhi itself.