Organisation for Economic Co-operation and Development (OECD) had recently come out with a paper in partnership with Climate Policy Initiative 'Climate Finance in 2013-14 and the USD 100 billion goal', claiming significant progress has been made on a roadmap for USD 100 billion a year climate change financing by 2020 and USD 62 billion has already been given.
"Double accounting is not the real numbers. It does not reflect the real numbers," Environment Minister Prakash Javadekar said.
The BASIC is a bloc of four large newly industrialised countries - China, India, Brazil and South Africa.
South African Environment Minister Edna Bomo Molewa said that countries agreed that finance must come from all the sources and although OECD has come out with a report, the reality remains that nations were not part of putting together the narrative behind what is being calculated.
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"We still have to agree as parties under UNFCCC that what is it that is counted, what amount is meant for what. This process can be complicated if we do not have mechanism of accounting and what we are calculating.
of Brazil Izabela Teixeria who said it was important to know about accountability and transparency.
"It's important to know about accountability and transparency. That's we are working hard to get a good agreement in Paris. What is the real number. We are not talking about pledges but the disbursement. You need (to) show the numbers, the sources (of funds)," she said.
China also maintained that the calculation was not unified and there was also an issue of double accounting.
"The calculation is not unified and there is a double accounting issue. Transparency is a very important approach. Developed countries are saying we provided USD 62 billion, developing are saying we have not received it.
India had earlier said the report is "deeply flawed and unacceptable" and raised questions on its "correctness".