Filmmaker Karan Johar is a single parent to his twins, Yash and Roohi Johar, who were born via surrogacy in 2017. And KJo has often been candid about the challenges of single parenthood, and how his mother, Hiroo, who is now 81, helps him take care of the children. Now in a recent interview, Karan talked about how his children have started asking questions about their mother and their birth, which makes him seek the necessary guidance.