The security breach at Priyanka Gandhi Vadra's home last week was an "unlikely coincidence" of Congress workers arriving in the same car, at the same time Rahul Gandhi was expected, Home Minister Amit Shah said in parliament today. A high-level inquiry had nevertheless been ordered and three personnel had been suspended after the incident, he said in Rajya Sabha, replying to a debate on changes to the SPG (Special Protection Group) law that have led to the Gandhis' security being downgraded.