The 'Krrish' star has reportedly been advised bed rest for three-four weeks.
Karan will gift Hrithik a personalised DVD of Ranbir Kapoor and Deepika Padukone starrer hit movie 'Yeh Jawaani Hai Deewani'. It will be watermarked, said a statement.
Hrithik had met the film's director Ayan Mukerji at a recording studio and apparently told him that he loved whatever he had seen of the romantic drama.
Mukerji and Karan had tried to arrange a special screening of the film for Hrithik.
Hrithik and Karan have worked together in films like 'Kabhi Khushi Kabhie Gham' and 'Agneepath'.