Indian government bonds traded in a narrow range early on Monday, as concerns over geopolitical developments and a domestic supply overhang muted demand. Risk appetite for U.S. debt weakened after the U.S. Supreme Court struck down President Donald Trump's tariffs, while the Trump administration imposed fresh levies immediately after. The moves spilled over into domestic sentiment, keeping traders cautious. Nuclear talks between the U.S. and Iran have also put pressure on oil. Brent crude futures fell about 1% to $71.07 on Monday, but oil prices were still close to their six-month peak, a key risk for net energy-importer India.