Credit rating upgrades for Indian firms relying on local consumption are averaging near the highest in a decade as infrastructure, automotive and cement companies harness robust cash flows to bolster balance sheets, pointing to an imminent revival in private-sector capital expenditure. Global private equity firm Warburg Pincus will acquire a significant stake in Everise, a Delaware-registered outsourcing firm, by completely buying out Singapore-based private equity firm Everstone and partially picking up a stake from the company's primary shareholder, the Canadian asset manager Brookfield.