MUMBAI, Jan 22 (Reuters) - An Indian state consortium will meet on Jan. 27 to take a decision on a possible rival bid for Africa-focused coal miner Riversdale, the chairman of one of the group's members said on Saturday. "No decision has been taken yet," Partha Bhattacharyya, chairman of Coal India, told Reuters. "We will meet again." The consortium, International Coal Ventures Ltd (ICVL), consists of utility NTPC, Steel Authority of India Ltd , iron ore miner NMDC, Coal India and steelmaker Rashtriya Ispat Nigam Ltd. Anglo-Australian miner Rio Tinto has offered $3.9 billion to buy Riversdale in an agreed deal as it seeks secure coking coal reserves sought after by steelmakers. (Reporting by Sumeet Chatterjee; Editing by Aradhana Aravindan) ((email@example.com; +91-22-6636 9068; Reuters Messaging: firstname.lastname@example.org)) Keywords: ICVL RIVERSDALE/ (If you have a query or comment on this story, send an email to email@example.com) COPYRIGHT Copyright Thomson Reuters 2011. All rights reserved.