Mohammad Amir then reduced India to 33 for three by dismissing all the members of the title-holders' top three, with Rohit Sharma out for a duck and opposing skipper Virat Kohli, the world's leading ODI batsman, falling for just five.
Hassan Ali was in sublime form in the tournament when he displayed excellent variation, picked up wickets consistently and in crucial phases during Pakistan's successful journey in the competition, which had started with a 124 runs drubbing at hands of India at Edgbaston on 4 June.
Hasan Ali drew inspiration from his fellow fast bowler to take three wickets and, supported by tigerish fielding which has not always been a feature of Pakistan cricket teams, they bowled out India for 158 to win the trophy for the first time.
As well as Kohli, their top order boasts the likes of dynamic opening pair of Rohit Sharma, fresh from a hundred in a nine-wicket semi-final rout of Bangladesh, and Shikhar Dhawan.
Earlier, Pakistan made 338 for four after losing the toss with opener Fakhar Zaman's 114 his maiden one-day worldwide hundred in just his fourth match at this level.More news: America's Cup Day 1: Two Wins But Plenty to Improve
Pakistan opener Fakhar Zaman's century 114 off 106 helped his side put a huge total on the scoreboard.
Having gone into Sunday's showpiece at The Oval as underdogs, Pakistan produced a sensational all-round performance to comprehensively defeat their great rivals by 180 runs and win the 50-over event for the first time.
"We knew we were better than what we showed in the first game against India".
After India had won the toss, Fakhar, on three, was caught by wicketkeeper Mahendra Singh Dhoni off a Jasprit Bumrah no-ball and the 27-year-old left-hander took full advantage to make his first worldwide century.
For India, pacers Bhuvneshwar Kumar, Hardik Pandya and spinner Kedar Jadhav took one wicket each.
The score is Pakistan's second-highest against India.More news: Murder inquiry as teen found dead in water park after 'brutal' attack
Which of these old foes wins the 2017 ICC Champions Trophy?
Today's match was a one-sided affair, with Pakistan outperforming India in all three departments.
Video highlights of the historic Pakistan victory can be viewed on this page, below.
Kohli also praised young all-rounder Hardik Pandya, who was the highest scorer among the Indians with 76 runs off 43 balls.
Yuvraj Singh was lbw to leg-spinner Shadab and former captain MS Dhoni, the hero of many an India rescue mission, holed out in the deep. "The Pakistanis would collapse as usual, we have a mental block against India".
"When we arrived here (in England), we were No 8 and now we are the champions".More news: Zidane pleads with Ronaldo after 'I quit' bombshell
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