Queen Elizabeth will be buried alongside her husband Prince Philip in a small chapel in the grounds of Windsor Castle.
Among the 2,000 in the congregation will be some 500 world leaders, including Biden, Emperor Naruhito of Japan, Chinese Vice President Wang Qishan, and South African President Cyril Ramaphosa.
The MP said there was no question of praising the British for whatever they did to enhance their own rule.
Charles' coronation as king will take place at a later date - and the timing for that is not yet clear.
Britain's new king gave a televised address to his nation on Friday.
The national flag will be flown at half-mast on the day of mourning.
She is regarded as a dignified, dependable figure who reigned longer than any other British monarch.
Truss takes power at a time when the country faces a cost of living crisis, industrial unrest and a recession.
Fury made the announcement, two days after insisting he would make a comeback to the sport to complete a trilogy against fellow-Briton Derek Chisora
British author and traveller Henry Bruce was bowled over by Thrissur.