Mumbai (Maharashtra) [India], January 7 (ANI): Actor Katrina Kaif extended a heartfelt birthday wish for her sister Isabelle Kaif. On Saturday, Katrina took to her Instagram account and shared a picture of her sister from her birthday celebration which she captioned, “Happy happy happiest izzy bizzzy bee.” Katrina’s husband and actor Vicky Kaushal also wished her sister-in-law. He shared a picture on his Instagram stories and wrote, “Happy Happy birthday @isakaif! Wish you the most amazing year ahead.” Isabelle made her acting debut in Bollywood in Stanley D Costa’s directorial ‘Time To Dance’…