Two private cars of same make, colour and bearing identical registration number were seized in the Kathua district of Jammu and Kashmir, police said.
A police spokesman said they have arrested a man in this connection.
The person was arrested after the owner of one of the cars lodged a complaint with the Lakhanpur police station that another car of the same make, colour and registration number is plying in the town.
He also said he had purchased his car from a person named Mohammad Rafiq, a resident of Broindhai Hatli village in Kathua. Police said Rafiq was arrested after it came to light that he recently purchased a brand new car and intentionally used the same registration number.
The spokesman said a case has been registered and police are seeking clarification from authorities concerned.