Karan Johar’s mother, Hiroo Johar will turn 75 on Sunday and the filmmaker son has some big plans in the pipeline to celebrate his mom’s birthday. “Karan Johar has sent out customised invitations with a bottle of champagne, cake, chocolates and a bunch of Hiroo Johar’s favourite white roses. Karan has planned a brunch at a five star hotel and the venue will be decked with flowers. The menu will comprise the best of Chinese and Indian cuisine. Karan is also planning a surprise for the cake-cutting ceremony besides shopping for presents,” reveals a source close to the filmmaker. The guest list includes Waheeda Rehman, Neetu Kapoor, Rani Mukerji, Rima Jain, Gauri Khan, Jaya Bachchan with daughter Shweta, Varun Dhawan’s mother – Karuna, Shobha and Ekta Kapoor, socialite Natasha Poonawala, and many other.