Uber India — Illegal registration of Car in Uber

Address: Guwahati

My car was registered with Uber, but I've sold my car in the year 2017 to the driver. Since then I've nothing to do with the Car. Recently I've come to know that the person who has bought my Car has till now not transferred the ownership of the Car and he is still using it in my name and is registered with Uber. This is a serious concern and want Uber to take immediate action on it by blocking the registration for the car until it is transferred by the current owner.
Car number is AS01 BC 6577