Hrithik Roshan will be back in action from January 18 next year. The star is slated to shoot a song sequence for his upcoming film Bang Bang co-starring Katrina Kaif.

Roshan was to shoot the song in November, but due to his health conditions, he was forced to cancel the shoot.

Says a source, `A set was constructed at Film City, but due to constant headaches post his brain surgery in July, Hrithik had to leave for the US for treatment.`

The star, who returned from the US on Friday, has apparently given his nod and the set will be reconstructed in the helipad area of Film City.

Adds the source, `Hrithik is now concentrating on his health and is feeling better.`

Hrithik remained unavailable for comment.