China and other G20 countries were aware that India was working on a proposal, the officials said.
"China takes the debt issue of developing countries seriously and supports relevant financial institutions to put forward solutions," he said.
The People’s Bank of China and the Finance Ministry did not immediately respond to requests for comment.
New Delhi expects the United States to be one of the main backers of its proposal, said one of the sources.
India and the Paris Club of creditors recently told the IMF they supported Sri Lanka's debt restructuring plan as the bankrupt nation sought a $2.9 billion loan.