Hrithik Roshan and Sussanne Khan celebrated son Hridhaan's 14th birthday on Sunday.

They went for a lunch together, a picture from which Sussanne shared on her Instagram profile.

She captioned it: "To our sky full of Ridz... With a heart like yours and a soul so strong yet immensely gentle,

we are lucky to celebrate you every day... Happy 14th birthday beautiful boy...We love you the most #SkyfullofRidz."

In the comments section of the post, Sussanne Khan's rumoured boyfriend Arslan Goni commented: "Happy, happy Ridz."

Hrithik Roshan married Sussanne Khan in 2000.

They got divorced in 2014. They continue to co-parent sons Hrehaan and Hridhaan.

Earlier on Sunday, Sussanne Khan shared this special video for her son.

"Happy happy joy joy to my amazing birthday boy... My Sky full of Ridz... onwards and upwards to the best years of your life..

I am so lucky you chose me to be your mama. #hridaan #14thbirthday #mySkyfullofRidz," she captioned the post.