India, July 29 -- The Public Works Department (PWD) is implementing a multi-pronged strategy to expand and upgrade Delhi's surveillance infrastructure, which includes technical audits, rationalisation of uninstalled cameras, and installing 50,000 more CCTV units, officials aware of the matter said on Monday.

The Rs.100 crore expansion plan is aimed at strengthening public safety across key infrastructure maintained by PWD, such as government offices, arterial roads, underpasses, schools, hospitals, courts and prisons.

"Many of the cameras installed earlier have become defunct or require urgent maintenance. Some have also been stolen or disconnected. This audit will ensure that our existing infrastructure is functional before we move to ...