Granger attended Belmont Intermediate School, and St. Mary's College[5] before entering the University of the West Indies in St. Augustine in 1967 where he was elected president of the Guild of Students.
Partly in response to these events in Canada, Granger founded the National Joint Action Committee together with Dave Darbeau (later known as Kafra Kambon), Carl Blackwood, Aiyegoro Ome, Kelshall Bodie and Russel Andalucio.
In late 1969, protests organised by NJAC successfully prevented a planned visit by the Canadian Governor-General Roland Michener to the St. Augustine campus of the University of the West Indies.
[7] A demonstration was organised by NJAC and other groups on 26 February 1970 in Port of Spain to mark the first anniversary of the Sir George Williams affair.
[7] On 21 April, the Prime Minister, Eric Williams, declared a state of emergency and arrested Granger[2] and 14 other leaders of the Black Power movement.