India, Dec. 9 -- The monsoon in Delhi ended more than two and a half months ago, yet the RTR underpass, a key link connecting south Delhi's Benito Juarez Marg with San Martin Marg and Ring Road, remains stubbornly waterlogged. Its walls, roof and even side panels continue to drip, leaving long stretches of the underpass slippery and hazardous for commuters.

Inaugurated to decongest parts of south Delhi near Daula Kuan about four years ago, the Y-shaped 1.2km long underpass has had drainage problems since its inception, but commuters say the problem has gotten much worse over the past few months.

HT had reported in March about the drainage mess at RTR that continues to persist even after several rounds of repair works.

During a spot che...