Dhanbad-SEB via gaya 3rd line ka koi proposal nahi hai....
Actually Patratu - Son Nagar 3rd line ka proposal hai aur kaafi kaam hua hai...
Sayad isko hi future me Dhn tak extend karne ka proposal hai, so isko dhanbad-Son nagar 3rd line ka naam diya gaya hai...
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DFC will be parallel to the existing line between KQR and DHN so, there is no need of third line