India, March 31 -- A day after being fined Rs.25,000 by the National Green Tribunal (NGT) for failing to file a status report on Barapullah's subsidiary drains, the Delhi Urban Shelter Improvement Board (DUSIB), in its latest submission, shifted responsibility for sewer infrastructure gaps to the Delhi Jal Board (DJB), reviving an inter-agency blame game that has marked proceedings in the case.

In its affidavit filed before the tribunal on Tuesday, DUSIB maintained that its mandate is limited to constructing and maintaining community toilet complexes in slum clusters, while the laying of sewer lines and ensuring sewage connectivity fall on the DJB.

DUSIB argued that any delay in plugging sewage discharge into the Barapullah and its feed...