Shiv Sena (UBT) MLC Vilas Potnis and a police officer assigned to guard him have been booked for entering a counting center in Goregaon, Mumbai, on June 4 during the announcement of Lok Sabha results amidst the Uddhav Thackeray faction of Shiv Sena insisting that Ravindra Waikar should not be sworn in as a Lok Sabha member until the matter is resolved.