England suffered a dismal batting collapse to slip to an innings-and-75-run defeat on the final day of the fifth Test against India in Chennai.
Behind by 282 on first innings, England were taken to 103-0, but then lost four wickets for 26 runs.
They looked to have been steadied until Moeen Ali played an awful swipe at spinner Ravindra Jadeja, who took 7-48.
The last six wickets fell for 15 runs, with England all out for 207 to give India a 4-0 series win.
England have now lost six of their past eight Tests, seven of which have come on a gruelling tour of Bangladesh and India, where alien conditions have highlighted familiar weaknesses in their batting and spin bowling.
They do not play another Test until July, by which time they may have a new captain, with Alastair Cook admitting to having questions over his future.
“Normally, they sack losing generals,” said former England batsman Geoffrey Boycott on BBC Test Match Special. “You’ve got to do something about it.
“England pay the coaches and the director of cricket fortunes, but nothing will happen. They will beat people in England on seaming pitches and everything in the garden will be rosy.”