46-year-old Kejriwal, known for his sheer determination and grit, devised an "out-of-the-box" campaign strategy to enthuse the fledging party to a historic victory in the Assembly polls winning 67 of the 70 seats.
It was dubbed as a David vs Goliath battle considering enormous effort put by BJP to wrest power in the capital.
AAP's triumph is not only seen as a landslide victory but also a rallying point for the opposition to take on the BJP government, in the process propelling Kejriwal as a major figure in the national political scene.
The stupendous victory was being considered significant in the political landscape as the bespectacled IITian put a brake to the string of electoral triumphs for BJP since the May Lok Sabha polls. All major opposition parties saw AAP's victory as a signal for opposition forces to come together to take on the saffron challenge.
Quietly spreading his party's wings after the Lok Sabha poll debacle in which AAP failed to open its account, the activist-turned-politician achieved the feat by taking his "participative politics" model to the masses through a strong army of dedicated volunteers and his sheer perseverance.