City firm Wilde Sapte has appointed NatWest's head of group taxation Krishna Bose as a senior international tax adviser. Bose has headed the bank's taxation branch for 17 years and had previously served as group tax manager for Reckitt and Coleman. He joined Wilde Sapte last week after retiring from NatWest. He says he was keen to continue work after his retirement. The firm has hailed the appointment as an important development for its tax practice.