Australia 469 (Head 163, Smith 121, Siraj 4-108) and 270 for 8 dec (Carey 66, Jadeja 3-58) beat India 296 (Rahane 89, Thakur 51, Cummins 3-83) and 234 (Kohli 49, Lyon 3-41, Boland 3-46) by 209 runs
London: Australia won the World Test Championship by ruthlessly dismantling India on the fifth day of the final at The Oval.
India's slim hopes of reaching a world-record target of 444 rested on Virat Kohli, 44 not out as they began on 164-3, but the fans' hero was out for 49 in the seventh over of the day.
Kohli aimed a loose drive at Scott Boland, with Steve Smith taking a stunning catch at second slip. In the same over, Ravindra Jadeja edged Boland behind.
The game in their grasp, Australia efficiently worked through the lower order before lunch to dismiss India for 234 and take victory by 209 runs. Boland ended with 3-46, off-spinner Nathan Lyon 4-41.
They become the second winners of the World Test Championship, following New Zealand's success two years ago.
It means Australia carry the crown of being the best Test team in the world into the most eagerly-anticipated Ashes series in a generation.
The first match in the five-Test contest against England begins at Edgbaston on Friday.
Boland made a stunning start to his career as a 32-year-old in the last Ashes 18 months ago and his accuracy, relentlessness and seam movement have him primed to make a big impact this time around.
Kohli had made a calm, assured start when Boland dragged him into driving at a wide one. The thick edge flew to the right of second slip Smith, who took a spectacular catch in both hands with his body parallel to the ground.
Two balls later, Jadeja's nick was audible around the ground. KS Bharat could have fallen to his first delivery, only for a spitting deflection off the glove to balloon over first slip.
Ajinkya Rahane remained, until one drive too many at Mitchell Starc ended his resistance on 46. Shardul Thakur played all around Lyon to be leg before and Umesh Yadav was bounced out by Starc.
Bharat's swipe to be caught and bowled by Lyon delayed the lunch break, allowing time for last man Mohammed Siraj to reverse-sweep Lyon to point.
Australia embraced on the field, the Test mace and $1.6m (£1.27m) in their possession. They are the first team to win world titles in all three formats of the game and now set their sights on defending cricket's oldest and most storied prize.