Filmmaker Farah Khan's triplets - son Czar and daughters Diva and Anya - turned 7 Wednesday. The proud mother says they have given her a chance to enjoy a "happy childhood". “My kids teach me that it's never too late to have a happy childhood,” tweeted the "Happy New Year" director, who had the three children via IVF at the age of 43. It is not a secret that Farah had a tough childhood with financial troubles, due to which she had to start working at an early age. But she emerged as a winner after fighting through all the thick and thin and is now known as one of the most successful female film directors of Bollywood. Farah also shared a photograph of her children, who were all decked up and are seen cutting their birthday cake. “My world is 7 yrs old today!! Early morning cake cutting b4 school,” she tweeted along with the image. Farah married movie editor-director Shirish Kunder, who edited her film "Main Hoon Na". Later, he also worked on her directorial "Om Shanti Om". Actor Boman Irani, who has worked in most of her movies like “Happy New Year” and shared screen space in “Shirin Farhad Ki Toh Nikal Padi”, also wished Farah's children. “They share the same birthday??? Super. Lots of love to my sweets. @TheFarahKhan,” he tweeted.