New Delhi, April 7 -- Public Works Department (PWD) minister Parvesh Verma on Sunday oversaw the trial of a sewer cleaning machine deployed to clear blockages in the drainage network at Zamrudpur village near Greater Kailash, and announced that his government plans to deploy several such machines before the onset of monsoon to prevent waterlogging in the Capital.

The suction-cum-jetting device on trial, called a "recycler machine", was brought to Delhi on loan from Mumbai's Brihanmumbai Municipal Corporation (BMC), officials said. They said the machine is capable of deep and thorough cleaning of sewers without requiring any manual entry into the system.

Verma alleged that most drains, nullahs, and sewer lines in Delhi have not been desi...