The Gautam Buddh Nagar police on Sunday apologised to Priyanka Gandhi Vadra and said it has ordered an inquiry into a policeman holding the Congress leader by her kurta during a ruckus at the DND flyover on Saturday. The incident occurred at the Delhi-UP border when Priyanka along with other Congress leaders including her brother Rahul Gandhi was heading to Hathras on Saturday afternoon to meet the family of the gangrape victim.