Bengaluru: Four executives of Kingfisher Airlines and three former executives of IDBI Bank were arrested on Monday in the Kingfisher loan case. A team of CBI officials visited the offices of the UB Group headed by Vijay Mallya, who is facing the process of recovery of Rs 6,203 crore from banks in the Kingfisher case and has been declared a proclaimed offender by the court. Earlier, the CBI had filed a case of alleged default in loan repayment by the Kingfisher Airlines to IDBI Bank. — PTI