Aditya Birla Management Corporation Private Limited (Aditya Birla Group) Chairman Kumar Mangalam Birla is considering infusing some of his own capital into Vodafone Idea Limited (NSEI:IDEA) while the Vodafone Group Plc (LSE:VOD) may sell at least a part of its stake in Indus Towers Limited (NSEI:INDUSTOWER) and channel the proceeds into the loss-making telco. This will be followed by external funding, say people aware of the matter. Much of the funds will have to come in from external sources.KM Birla will put in some money, but not a significant sum while Vodafone is unlikely to pump in more money (from the UK group). Monetising the assets in Indus is really the plan, said a senior official close to the Vodafone Group. Clearly, investors want both the promoters to put their money where their mouth is. It is only after that external fund-raising will happen, the official added. Another person familiar with the matter said that the promoter infusion is likely to be much lesser than INR 100 billion that has been reported in some media. ET's query to the Aditya Birla Group (ABG) and Vodafone India did not elicit a response. The Vodafone Group declined comment. For about a year, the telco has been in discussions with a slew of potential investors. But it hasn't been able to close its planned INR 250 billion fundraise and has blamed unviability of the sector as the main reason. Vodafone Idea Managing Director Ravinder Takkar recently said that the company's management is now re-evaluating its funding requirements afresh and will take a fresh proposal to the board soon.