At this year's UN climate summit (COP30), under way in Brazil's Belem city, all eyes are on India - the world's third largest carbon emitter.

India has not yet submitted a key climate plan that countries are required to do every five years, even as international assessments have deemed India's climate action as being "worryingly inadequate". Delhi has argued otherwise.

Known as Nationally Determined Contributions (NDCs), the updated plan from each member country to the UN Framework Climate Convention (UNFCC) is expected to have more ambitious carbon reduction targets as the world has failed to make the required level of cuts to avoid dangerous global warming.

So far, around 120 of the 196 member countries of the UNFCCC have submitted their updated plans and India is among the remaining ones.

The Paris climate agreement signed in 2015 has the goal of limiting average global temperature rise to well below 2C and to strive for 1.5C to avert drastic climate change.