India, May 4 -- Delhi Metro has opened the door to another major expansion, with preparations beginning for seven fresh corridors under Phase V (B) as the Capital's rapid transit system looks to stretch deeper into a city struggling with road congestion and rising commuter load.

The announcement came on Sunday during the 32nd Foundation Day of the Delhi Metro Rail Corporation, but the larger message was clear: even after three decades of construction, Delhi's busiest public transport network is still far from finished. Chief Minister Rekha Gupta said Delhi Metro is moving ahead with Phase IV and Phase V(A) works and has now started planning seven additional corridors under Phase V(B) to further improve city connectivity.

The proposed ro...