The sale at Volte Una's debut auction makes the 2002 canvas the fourth-most expensive Indian artwork in history.
The Manchester illustrator says the party used his work without permission on promotional merchandise mocking the mayor.
The pontiff argues there is an "ontological difference" between human creation and machine calculations.
The artist behind the defining posters of the counterculture era brought bold, cosmic optimism to millions of homes.
The 1,000-year-old depiction of the Norman Conquest has drawn record crowds and top political leaders to the British Museum.
