New Delhi, Dec. 13 -- Work on the last of the six underpasses of the Pragati Maidan tunnel project has remained stuck for the past three months, as two central ministries - the ministry of housing and urban affairs (MoHUA) and the ministry of railways - have been unable to reach an agreement on how to complete the partially constructed structure.

The impasse has left a crucial stretch between south and east Delhi burdened with persistent traffic congestion, even as the project enters its third year of delay.

While the main tunnel and five underpasses were inaugurated by Prime Minister Narendra Modi and opened to the public in June 2022, Underpass 5, along Bhairon Marg, is yet to be completed.

The project, being executed by the Delhi pu...