India on Wednesday (Sept 20) urged its nationals in Canada, especially students, to exercise "utmost caution" as ties deteriorate in an escalating row over the murder of a Sikh separatist leader.<br /><br />WATCH MORE: https://thestartv.com/c/news<br />SUBSCRIBE: https://cutt.ly/TheStar<br />LIKE: https://fb.com/TheStarOnline
