Here is a list of some of the most popular once with link to video/audios of the original tracks.
Movie: Murder : Kaho na Kaho
Original : Amru Dayab (namals mayak)
Movie: Style : Mohabbat Ho Na Jaye
Original : Amru Dayab (Habibi ya-nor-el-ayn)
Movie: Race Song: Pahle Nazar me
Original: Sarang hae yo (Kwae-geol chun-hyang)
Movie: Woh Lamhe Song: Kyun Aaj Kal
Original: Tak Bishak (Peterpan)
Movie: Bluffmaster Song: Bure Bure
Original: Boro Boro
Movie: Gangster Song: Ya Ali
Original: Ya Ghali (Arabic, Guitara)
Movie: Kalyug Song: Aadat
Original: Aadat (Jal, Atif)
Movie: Lage Raho Munnabhai Song: Pal Pal Har Pal
Original: Cliff Richard’s “Theme for a dream”
Movie: Gangster Track: Bheegi Bheegi
Original: Prithibi (Mohiner Ghoraguly)
odeo url for the song