"The goal of $100 billion per year of climate finance by 2020 and every year thereafter through till 2025 is yet to be achieved," the government said in a statement ahead of the COP27 event in Egypt, which begins on Nov 6.It has been ramping up its share of renewable energy, but coal continues to be India's main fuel for power generation, as the country strives to provide energy for its 1.4 billion people using a cheaper fuel.Two Indian government sources told Reuters earlier this week that India had already initiated steps such as meeting half of its energy demand from non-fossil fuels and building 500 gigawatts of non-fossil energy capacity by 2030.Delhi environment minister Gopal Rai said going forward 50 per cent of Delhi government employees would be told to work from home, and he urged private firms to take similar steps.A filthy smog forms over the Indian capital every winter as cold, heavy air traps construction dust, vehicle emissions and smoke from crop stubble burning in neighbouring states, causing a surge in respiratory illnesses among the city's 20 million people."