The DMRC on Tuesday said that the proposed Rithala-Narela corridor of the network may possibly be extended up to Kundli in Haryana to provide additional connectivity to the neighbouring state, PTI reported.

The report said that if approved, this will be Delhi Metro's fourth expansion into Haryana after Yellow Line (Gurugram), Violet Line (Faridabad) and Green Line (Bahadurgarh), the Delhi Metro Rail Corporation (DMRC) said in a statement.