India is pressing the European Union on climate rules as free trade agreement negotiations reach a crucial juncture amid US tariff threats. Commerce Minister Piyush Goyal held marathon talks European counterpart Maros Sefcovic to resolve contentious issues including Europe's carbon border adjustment mechanism tax. The EU is India's largest trading partner merchandise trade worth $140 billion in 2024. Both sides want stable markets shielded from tariff threats while decoupling from China-led supply chains.