Over 490 cartridges, most of them live, were found abandoned in a drain in the powerloom town of Bhiwandi in the district, police said today.
The cartridges, 401 of them live and the others used, were recovered yesterday during cleaning of the drain by civic employees ahead of monsoon, Inspector Prakash Patil of Narpoli Police Station said.
Police have registered an offence under relevant sections of the IPS and Arms Act and launched a probe.