The Indian men are searching for their maiden medal in the tournament.
Kartik had moved to Toronto in Canada in January this year for higher education.
She was on the way to pick her children from music class, when her car met with the accident.
The dead have been identified as Harpreet Singh, Jaspinder Singh, Karanpal Singh, Mohit Chouhan and Pawan Kumar.
As some of the impacted students and their supporters raised slogans for justice at a rally in the Toronto suburb of Brampton on Wednesday, anxiety was writ large on their faces.
The matches -- Canada vs Scotland and Canada vs either of Uganda or PNG -- were to be played on Saturday and Sunday.
Jagdish Baldevbhai Patel, 39, Vaishaliben Jagdishkumar Patel, 37, Vihangi Jagdishkumar Patel, 11 and Dharmik Jagdishkumar Patel, 3, all from the same family, were found dead near Emerson, Manitoba.
India's unemployment is estimated to have exceeded the global rate in five of the last six years.
The deceased were a man, a woman, an infant and a teen boy. All four died from frostbites.
COVID-19 case numbers are increasing, with the national seven-day average of new cases at its highest point since Oct. 1, as Canadian hospitals struggle to clear backlogs from months of postponed procedures.