"What we found out is that even on the mitigation front, actions of developing countries like South Africa, Brazil, China and India, are more concrete than the developed world", said Indian environment minister Prakash Javadekar.

"It's a high time that the developed world should walk the talk", he said after the ministerial meeting of the BASIC nations —Brazil, South Africa, India and China.

In what may be a bold step to showcase their actions at international forum, Javadekar said, "I will suggest that we will make a compendium of what we have done and put up before the forthcoming UN Climate Summit meeting in September.''

The summit on climate change will be hosted by UN secretary general Ban Ki-moon in New York on September 23 for generating "political momentum on climate action" ahead of the December climate deal negotiation talks in Lima, Peru.

Highlighting how seriously the developing countries are working on cutting emissions of greenhouse gases, vice chairman of the National Development and Reform Commission of China, Xie Zhenhua said, "Around 60% of the cut in emission is contributed by the developing countries.''

Asked whether separate discussions on bilateral levels like Indo-US and US-China talks would dilute the principles of multilateral dialogue on climate change, Zhenhua said discussions between US and China at the bilateral level was shared with the BASIC countries.

He dismissed such apprehensions that bilateral meetings were diluting principles of multilateral convention. Indian minister Javadekar held the similar view.

The four nations also issued a joint statement after the conclusion of the two-day meet on Friday, reaffirming their position that the future global climate deal must fulfill the principles of equity and 'common but differentiated responsibilities' (CBDR) under UN convention.

Idea of reaffirming this well understood point at all successive ministerial meetings of this block is to ensure that the differentiation between developed and developing countries finds its place by all means in the 2015 global climate deal in Paris.

Sending strong message to rich nations, the four countries also made pitch for early and substantial capitalization of the Green Climate Fund (GCF) and need for all parties to communicate their intended nationally determined contributions (INDCs) as early as possible.

Referring to the GCF, the joint statement said, "The ministers proposed that a part of the funds to be made available under the Green Climate Fund could be utilized to secure intellectual property rights (IPRs) of relevant climate friendly technologies for deployment in developing countries".

The ministers urged developed countries to implement their commitments under the UN Convention towards developing countries for provision of finance, technology and capacity building support.

The joint statement also reiterated that the Kyoto Protocol remains the essential and legally binding basis for addressing pre-2020 mitigation ambition and called for the expeditious ratification of the second commitment period of the protocol.

South Africa was represented by its environmental affairs minister Edna Molewa while Brazilian delegation was led by the country's deputy environment minister Francisco Gaetani. The next round of the BASIC ministerial meeting will take place in South Africa in October.