To reduce the crowd in the Delhi Metro few initiative taken by as fallow:

As on 31st March 2015, the Company has a total of 1306 coaches (220 trains). Apart from extensions on various existing lines, two new lines viz. Line 7 & 8 are proposed in Phase III. 486 coaches (81 six car trains) being procured for these two new lines will have advance feature of Unattended Train Operation (UTO). Additional 258 Broad gauge (BG) coaches for Line 1 to 4 and 138 Standard Gauge (SG) coaches for Line...
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5 & 6 are proposed to be procured for augmentation/extensions to cater to the increased traffic. Resultantly, at the end of Phase III, there would be 2188 coaches (333 trains). Barring a few 4 car trains on Line 5, 93% of the trains would operate either in 6 car or 8 car configuration at the end of Phase III.