New Delhi, Jan. 23 -- A stretch of the long-polluted Barapullah drain in south Delhi is set to transform into a green public corridor, with public works department minister Parvesh Verma on Thursday inaugurating a 200-metre section of the much-delayed South Delhi Greenway project, featuring a walkway, a bamboo gazebo and landscaped green areas.

The initial phase covers a 4.5-km section of the 12.5-km Barapullah drain corridor, which is being redeveloped as an ecological and cultural passage with pedestrian walkways, cycling tracks and landscaped public spaces, officials said, adding that the project also integrates wastewater treatment systems to prevent untreated sewage from flowing into the Yamuna.

Officials said groundwork is visible...