New Delhi, March 18 -- Delhi Chief Minister Rekha Gupta on Tuesday congratulated the Delhi Metro Rail Corporation (DMRC) for the historic achievement of completing the deepest underground stretch of Phase 4 with a tunnel boring machine breakthrough at the IGNOU station on the Aerocity--Tuglakhabad corridor, also known as the Golden Line, as per a post on X by the DMRC.

https://x.com/OfficialDMRC/status/1901943659442163748

The new tunnel has been constructed 27 meters deep, marking it as Delhi Metro's deepest tunnel.

The tunnel work was completed on February 25 and achieved in the presence of CM Rekha Gupta, Delhi Minister of Industries and Food Supplies Manjinder Singh Sirsa.

Taking to social media X, the CM shared photos and wrote in...