Aditi Rao Hydari, set to star in 'Heeramnadi: The Diamond Bazaar,' marked fiancé Siddharth's birthday with heartfelt Instagram wishes. Sharing unseen monochrome photos, she expressed love and joy. Aditi's message, 'Happiest birthday my manicorn,' resonated with fans, showcasing their strong bond. The post garnered love and blessings from well-wishers, highlighting the couple's enduring affection.