"Very sorry to disappoint you, guys. It was not for my girlfriend or my fiancee, but for Sachin Tendulkar," he said at the packed post-final media conference with skipper Mahendra Singh Dhoni sitting by his side.
"This (winning the 50-over format World Cup) is unbelievable. Under-19 World Cup, then Twenty20 World Cup but this is the most special," he said after India defeated Sri Lanka by six wickets in the World Cup summit showdown.
"(This is) for Sachin, for everyone else in the team. I want to dedicate this to my Guru Ram Singh and Guru Ajit Singh and my parents and friends," he said.
After guiding the team to a great victory over defending champions Australia in the quarterfinals, Yuvraj had said that he wanted to win the trophy for a "special person" and added the identity of the person would be revealed by him after the final.
The 29-year-old left-hander felt India played like champions throughout the match and deserved to win.
"We played like champions and we deserve to win. We batted like champions and we saved lots of runs at the field," he said after being handed the Player of the Tournament award by ICC Chief Executive Haroon Lorgat.
Yuvraj said the team did not panic after the early dismissals of Sachin Tendulkar and Virender Sehwag and discussed how the players should avoid the mistakes committed during India`s 2003 World Cup final loss against Australia in Johannesburg.
"The last time we were in World Cup final (in 2003), we made lots of mistakes. We wanted to make amends. Batting second is a lot of pressure but Gauti (Gautam Gambhir) and MS (Dhoni) played outstandingly. They played like it was a normal game after the early dismissals," he said.
The Chandigarh-born player, who won four man-of-the-match awards for his stupendous show with the bat and ball in the tournament, was a satisfied man after contributing to the team`s success.
"We don`t have a proper left-arm spinner and so it was my job to bowl 10 overs. Narendra Hirwani has been helping me and I have been working hard. I have done well and for that I am winning this trophy.
"Tonight is going to be a good night. I don`t want to disclose what we are going to do. But thankyou India." he said.
Yuvraj thanked former India captain Sourav Ganguly and Dhoni for keeping faith in him when he was going through tough times.
"When I started my career, Sourav was the captain and he supported me a lot. When I went through ups and downs Mahi (Dhoni) supported me. Mahi has been a great captain. Whatever he touches turns into gold. Sourav and MS have been very helpful for my career."
"Last year, there were too many injuries, form was not great. I was banking on Ranji Trophy games. I got back to form at the right time," said the stylish southpaw, who scored 369 runs in nine matches and also picked up 15 wickets to display his all-round prowess in the tournament.
Yuvraj said he was not surprised by criticism when things did not go well.
"Criticism is part and parcel of the game. If you don`t do much, the criticism comes to you. Now that we have won there won`t be any criticism," he said