Javadekar, who will lead an Indian delegation to a UN conference on climate change in Lima, Peru, next week, said the emission-curbing goals announced by China and the US last month will leave both countries with per capita GHG emissions of about 12 tonnes.

In contrast, he said, India's current per capita GHG emissions stand at about 1.8 tonnes.

"They (China and the US) have not done anything big," Javadekar told reporters today. "We will go to Lima and do this dissection. But India is already doing things, we are contemplating even more aggressive action to address climate change."

In a joint pledge last month, President Xi Jinping had committed that China's GHG emissions would touch a maximum level by about 2030 and subsequently reduce, while President Barack Obama said the US would cut its own emissions by over 25 per cent by 2025.

Senior scientists and policy analysts tracking climate change negotiations believe the China-US announcement will intensify pressure on India to unveil its plans to curb emissions. But some have cautioned that India should not allow itself to be browbeaten into announcing its own peak year for maximum emissions.

Javadekar today declined to respond to a query whether India had initiated a process to determine whether it could announce a peak year for maximum GHG emissions, but said he would clarify India's position in greater detail on Friday, a day before he leaves for the Lima conference.

India was the fourth largest emitter of GHG emissions during 2012, contributing six per cent of the total global emissions, after China, which accounted for 29 per cent, the US with 15 per cent and the European Union with 11 per cent.

Several developed countries see India as a large emitter and want stronger action by New Delhi to curb emissions.

But Javadekar said India is under no pressure. "We don't take pressure," he said. "We are already aggressively pursuing a clean air and clean energy pathway. We have already announced plans to expand our solar energy targets five-fold from 20,000MW to 100,000MW - this shows our intentions."

Delegations from over 190 countries are meeting in Lima to discuss strategies to curb global Earth-warming GHG emissions in the coming decades and avert average temperatures from rising by more than 2°C.

Climate change analysts view the Lima conference as a precursor to several months of intense negotiations during which countries will reveal national emission-curbing goals. The UN talks are intended to culminate in a new global pact to be finalised in Paris in late-2015.

Independent analysts not involved in government consultations said India's strategy is unclear.

The climate change talks have been run on the principle of common but differentiated responsibilities that acknowledges the large historic emissions of the industrialised countries and their greater responsibility for action as well as the need for the developing countries to also curb their emissions.

"We are confident that all developing countries and developed countries will accept the concept of equity and common but differentiated responsibilities," Javadekar said. "We are going with confidence and hope for a positive outcome."

Javadekar said his ministry would seek to introduce by the budget session of Parliament a new set of environmental laws. "We want a system where the laws are firm, the rules clear and the processes transparent," he said.