Aashiqui 2 is the soundtrack to the 2013 Bollywood romance film of the same name, directed by Mohit Suri and starring Aditya Roy Kapoor and Shraddha Kapoor in the lead roles. The album was produced by Bhushan Kumar and Mahesh Bhatt under the banner T-Series and Vishesh Films. the songs of the film were mostly composed by Jeet Gannguli, although Mithoon and Ankit Tiwari composed two songs each (including both versions) as guest composers. Irshad Kamil wrote lyrics for most of songs on the album. Sandeep Nath wrote both versions of "Sunn Raha Hai", while Mithoon wrote "Tum Hi Ho" and Sanjay Masoom wrote "Bhula Dena". Arijit Singh sang six of the songs on the album. The music became very popular after its release on 8 April 2013, with songs "Tum Hi Ho" and "Sunn Raha Hai" topping the charts across various platforms in India. Jeet Gannguli reused the tune from his own Bengali composition "Mon Hariye Beghorey" for "Milne Hai Mujhse Aayi".

The song Tum Hi Ho had already been recorded by Mithoon two years before its original release through Arijit's voice.Unexpectedly the song became the most popular listener's choice song of the year 2013 and an ever-chanting love anthem for everyone.

The song "Sunn Raha Hai" was rendered in two different (electric rock and semi -classical) styles as per the demand of the film where a rich and popular singer sings with modern and sophisticated instruments and a poor bar singer sings with normal instruments. The composer Ankit Tiwari was appreciated for recruiting Shreya Ghoshal's voice for the female version of the song.

...
Wikipedia