Saif Ali Khan and Amrita Singh's son Ibrahim Ali Khan celebrates his birthday today, and his family members have already showered him with wishes on social media. Kareena Kapoor Khan shared a candid still of her son Jeh with Ibrahim, where the little one seems to be feeding cake to the birthday boy. Sharing it, she wrote, "Happy birthday Big Bro. Sweetest, most handsome boy. Big hug @iak" Ibrahim's aunt, Saba Pataudi, on the other hand, shared a carousel of photos along with a heartfelt note.