Based on the provided reference, at least two Kapoors are known to have blue eyes: Karisma Kapoor and Raha Kapoor.
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Karisma Kapoor: It's stated that Karisma's blue eyes made her Raj Kapoor's favorite grandchild.
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Raha Kapoor: The reference mentions that Raha, Alia Bhatt and Ranbir Kapoor's daughter, inherited blue eyes.
Therefore, the provided information confirms at least two members of the Kapoor family have blue eyes. There may be others, but this is what the reference material specifies.
