Shahrukh Khan translated the poem himself and posted this picture on his twitter account.
This poem has been written by Gulzar.
Jab Tak Hai Jaan Poem - LyricsTeri aankhon ki namkeen mastiyaan
Teri hansi ki beparwah gustaakhiyaan
Teri zulfon ki lehraati angdaaiyaan
Nahin bhoolunga main
Jab tak hai jaan. Jab tak hai jaan
Tera haath se haath chodna
Tera saayon ka rukh modna
Tera palat ke phir na dekhna
Najin maaf karunga main
Jab tak hai jaan, Jab tak hai jaan