India and Canada's relations have hit rock bottom after the latter communicated with New Delhi that senior diplomats were “persons of interest” in a probe.

"India made a horrific mistake," declared Canadian Prime Minister Justin Trudeau as he accused India of violating Canada's sovereignty, amidst an escalating diplomatic row over the murder of Khalistani terrorist Hardeep Singh Nijjar. Testifying at an inquiry on the alleged… pic.twitter.com/xBG8Tfdzpn

Justin Trudeau said India made a "horrific mistake" by allegedly interfering in Canada's sovereignty as bilateral relations degraded to their lowest point in decades. The Canadian prime minister made the comment just two days after Ottawa expelled six Indian diplomats and New Delhi followed suit as the fallout from the investigation into the assassination of Sikh separatist leader Hardeep Singh Nijjar continued to damage ties between the two countries.