A scheduled briefing by Foreign Secretary Vikram Misri to a parliamentary panel headed by Congress MP Shashi Tharoor on India's volatile ties with Canada and China did not take place on Wednesday and is likely to be taken up later, sources said. They said the briefing by the External Affairs Ministry delegation on its demands for grants for the year 2024-25 went on for a long time and it was decided that the briefing on these issues will be done at a later meeting.