Kammala wannan jumla: An fara harbi a Birnin New York a ranar 15 ga Yuli, wanda ya shafi yankuna a ciki da kewayen gundumomi biyar da kuma a Long Island. An yi fim din titin da Aman da Naina suke zaune a Brooklyn, inda rukunin suka yi zango na makonni biyu a gidajen gida. An yi amfani da mutum biyu don yanayin tseren Zinta a lokacin da aka fara fim din, tun da ta ji rauni yayin harbi. Ƙungiyar
Rashin wutar lantarki a arewa maso gabas na 2003 ya tilasta wa ƙungiyar ta soke wasu fina-finai. Shirin harbi a Birnin New York ya ɗauki kwanaki hamsin da biyu. An yi fina-finai na karshe, wanda ya hada da wasu waƙoƙi, a Filmistan Studios a Mumbai a cikin kimanin kwanaki hamsin da suka fara a watan Agusta 2003. An kammala harbi a watan Oktoba 2003, "Maahi Ve" shine wasan karshe da aka yi fim. A cewar Shah Rukh Khan, "Kal Ho Naa Ho" an yi shi ne a cikin sauti na sauti kamar yadda akwai abubuwa da yawa a cikin fim din. Ya lura cewa sautin aiki tare "ya inganta" aikinsa "sosai" yana bayyana shi a matsayin "ɗaya daga cikin manyan albarkatu ga ɗan wasan kwaikwayo".