21 June 2020
Holding a valid Adhar is good enough for your daughter to apply for a PAN in her name, that will be issued under your Guardianship as a Representative Assessee. Once she attains majority i.e. 18 years of age, she can get the same PAN mapped in her name individually.
Purchasing a car and registering the same with concerned RTO of the area requires the purchaser of the car to hold a valid driving licence at the time of registration. Since your daughter is 9 years old only, she wont be able to get the car registered in her name, until she becomes eligible to hold a Driving Licence.