Watch Tu Hi Hai song from the Bollywood movie `Dear Zindagi`Singer: Arijit SinghMusic: Amit TrivediLyrics: Kausar Munir Cast: Cast: Alia Bhatt, Shah Rukh Khan, Kunal Kapoor, Angad Bedi, Siddharth Shukla, Ira DubeyDirected by Gauri Shinde