New Delhi, Feb. 7 -- Filmmaker Karan Johar is celebrating his twins, Yash and Roohi Johar's birthday, who turned eight years old on Friday.

Karan took to his social media to share an adorable birthday wish for his children, accompanied by heartwarming pictures of himself with them.

In his heartfelt note, the 'Kuch Kuch Hota Hai' director reflected on the joy of fatherhood, writing, "My biggest achievement is one of being a father..."

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He also shared a touching explanation of why he named his children after his late parents, Yash Johar and Hiroo Johar.

Karan Johar wrote, "I named them after my parents because I felt beyond a lineage or a name, an emotion must continue... They are my ...