Jai ho seems to be a lucky composition by music director A R Rehman. It got him an Oscar and also happens to be one of the best things about Oscar winning film 'Slumdog Millionaire'. It has attracted attention which is the reason for Pussycat dolls singing English version of the song and cashing on Jai Ho.
Congress realised the song's potential as much as the filmy world did. Jai ho worked for Congress in the General election's campaign in India more than BJP's India shinning. Infact BJP had to suffer immensely for India Shining in 2004.
Enjoy the campaign video after the election result.
V :D