Duleepsinhji had come to England in 1921 to study at Cheltenham College and Cambridge University. By 1928 he was in the Sussex side; by 1929 he was the leading run-scorer in the county and being talked of as a Test prospect. The 333 at Hove came in mid-May 1929 against a Northamptonshire attack including Vallance Jupp.
Duleepsinhji's innings lasted 360 minutes and contained 34 fours and 6 sixes. Sussex declared at 521; the match was won by an innings. Wisden, naming him one of its Five Cricketers of the Year for 1930, said: 'No batsman of his generation has played the off-drive with more grace.'
Duleepsinhji played 12 Tests for England between 1929 and 1931 and scored 995 runs at 58.52 — including 173 on Test debut against South Africa at Lord's in 1929. His Test career was cut short by tuberculosis in 1932; he became a cricket administrator and later India's High Commissioner to Australia.