Big Four firm PricewaterhouseCoopers is to bring in partners from abroad to audit Indian clients in the wake of the alleged accounting fraud at Hyderabad-based IT outsourcing company Satyam. Speaking to the Economic Times in India, Sam DiPiazza, the global chief executive of PwC, who is stepping down from the role after 35 years with the firm, said that 'a number of partners and staff from firms outside India were helping with the process of reviewing work as part of the programme that has been put in place to confirm the quality of our audits'. Earlier this month the firm in India said it was overhauling its leadership following the discovery of a $1bn (£0.7bn) black hole in the accounts of Satyam, its audit client.