Pro-Khalistan protesters were kept behind police barricades outside the Indian High Commission in London this evening, in an apparent effort to prevent a repeat of the unprecedented vandalism that took place earlier this week. The London police have taken no chances, ratcheting up security ahead of the protest. Several vans carrying dozens of uniformed officers were stationed outside the building known as India House. Mounted police on horses patrolled the street and barricades were installed on the sidewalk. A giant Indian flag remained strung between windows following Sunday's incident.