Mom-To-Be Sonam Kapoor's Heartfelt Birthday Wish for 'Built-In Best Friend' Rhea Kapoor

• Mom-to-Be Sonam Kapoor penned a heartwarming birthday note for her sister Rhea Kapoor, calling her her 'built-in best friend'.
• The actress shared a montage video featuring Rhea with the entire family, including Sonam's son Vayu.
• Sonam praised Rhea's taste, instinct, confidence, loyalty, and her ability to 'build her own lane' on her own terms.
• She highlighted Rhea's protective nature, passion, and how Vayu is 'absolutely obsessed' with his aunt.
• Their mother, Sunita Kapoor, also reacted to the emotional social media post.