Friends and family have gathered at a funeral in Brazil to farewell Roberto Laudisio Curti, the 21-year-old student who died after police shot him with a Taser in Sydney's CBD.

Mr Laudisio Curti was buried on Sunday afternoon, local time, at Araca Cemetery in Sao Paulo's west, Brazilian newspaper Folha de S Paulo reported.

Friends and relatives of Brazilian student Roberto Laudisio Curti weep during his burial service in Sao Paulo. Credit:AP

Photographs showed mourners carrying white flowers, with some wearing T-shirts showing an image of Mr Laudisio Curti and the words "Luto Justica" meaning "mourning justice".

Brazilian media reported Mr Laudisio Curti's body was flown to Brazil on Friday night.