This page is updated now. Earlier, when I applied in May, we were asked to submit original passports as per this page and I did.I think the original passport is not required. Check out this link: https://www.cgitoronto.gov.in/page/police-clearance/?fbclid=IwAR1S96Lrhwe0OotyXD-S9PVHZ99FXsV2ndf8z7g_AiiLMih0I8HSUEDIOgc
May be, now they don't need original. They have updated the guidelines.