HONG KONG/MUMBAI, Nov 9 (Reuters) - India's ICICI Bank (ICBK.BO: Quote, Profile, Research), Singapore state investor Temasek and another large shareholder have revived plans to sell their stakes in back-office firm Firstsource Solutions (FISO.BO: Quote, Profile, Research) in a deal valued at $285 million at the current market price, sources said.

ICICI, Temasek's Aranda Investment and U.S.-based banking technology group Metavante together own 68 percent of Firstsource and have hired Citigroup (C.N: Quote, Profile, Research) to arrange the deal, the sources with direct knowledge of the deal, said on Monday.

The sources did not want to be named as they are not authorised to speak to the media.

ICICI declined to comment. Temasek officials in India could not be immediately reached.

A spokeswoman for Firstsource said in an e-mailed reply she would not want to comment on market speculation. (Reporting by Narayanan Somasundaram & Indulal P.M., Editing by Jacqueline Wong) ((narayanan.somasundaram@thomsonreuters.com; +852 28436358; Reuters Messaging narayanan.somasundaram.reuters.com@reuters.net))