David Cameron said the whole nation should be proud of the England cricket team after a crushing defeat of India propelled them to the top of the world Test rankings.
The Prime Minister said he watched the closing stages of the innings-and-242-run victory at Edgbaston from his sofa and lauded the "massive team effort".
India, who arrived for the tour as the globe's best side, lost that status in comprehensive style as they slumped to an unassailable 3-0 deficit in the four-match series.
"I congratulate the England cricket team on their fantastic achievement," Mr Cameron said.
"Their performance in this Test - including England's highest-ever innings score in a non-timeless Test and Alastair Cook's magnificent 294 - against the team that has up to now been ranked number one in the world, is a tribute to their domination of the sport.
"It was a massive team effort, bowling India out twice for less than 250 and always being so sharp in the field.
"I watched the closing overs on the sofa at home and will remember the joy of the crowd at Edgbaston and England getting to number one in such style for a long time to come.
"The whole nation can be very proud of our team of world beaters."
An already boisterous crowd of England fans, which had graciously applauded some late resistance from India's batsmen, let out an enormous roar as their heroes clinched the final wicket.