Akshay Kumar and Twinkle Khanna's son Aarav has achieved that title, which his dad also has. After years hard work, Aarav has got his black belt in Kudo. So Akshay is very happy. [embed]https://twitter.com/akshaykumar/status/729238568170717184[/embed] Let me tell you, Kudo is Japanise Marshal Art. Akshay himself is a Marshal Art expert, is very happy with his son success. So he expressed on social Meida. He tweet, 'Its a Son Day all d way! After 9 yrs of training my son got his 1st degree black belt in Kudo.' Aarav got this title on mother's day. This is twinkle's best mother's day gift.