Market Chatter -- Corporate finance press digest

BANGALORE, July 13 (Reuters) - The following corporate finance-related stories were reported by media on Tuesday:

* Four Chinese groups have approached American International Group (AIG.N) about buying AIA, its main Asian unit that it is selling to repay the U.S. government for a bailout during the financial crisis, Hong Kong media reported on Tuesday. [ID:nTOE66C00I]

* Avis Budget Group Inc will top rival Hertz Global Holdings Inc's (HTZ.N) $1.2 billion bid for Dollar Thrifty Automotive Group Inc (DTG.N), according to the Wall Street Journal. [ID:nN12210161]

* Japanese regulators may move forward with its antitrust review of BHP Billiton (BHP.AX) (BLT.L) and Rio Tinto Group's (RIO.AX) (RIO.L) plan to integrate their Australian iron ore operations, the Nikkei business daily reported. [ID:nSGE66B0IH]

* Billionaire investor Nelson Peltz is seeking to raise $1.5 billion for a fund meant to buy minority stakes in public companies, Bloomberg said on Monday, citing two people with direct knowledge of his plans. [ID:nN12213161] (Compiled by Anirban Sen in Bangalore)