The unit posted a loss of Rs 768 crore in 2014-15.
Rapid MetroRail Gurgaon was set up as a JV between IL&FS and DLF.
Post overcoming the hurdle of coal paucity, the coal secretary is now focusing on quality.
But year-on-year growth slows in October-December period.
It is buying a land parcel from a Gurgaon-based developer.