New Delhi, May 18 -- Indian government bond yields spiked to a nearly six-week high on Monday, following a sharp rise in global Treasury yields as surging crude oil prices reignited inflation concerns.

The benchmark 6.48% 2035 bond yield rose about 7.5 basis points to 7.1427%, hovering around a six-week high, and on the verge of breaking out to hit its highest in two years. Bond prices move inversely to yields.

The spike in yields comes amid a broad sell-off in global bond markets, triggered by escalating US-Iran war in the Middle East and a sharp rally in crude oil prices.

Higher US Treasury yields tend to reduce the attractiveness of emerging-market debt by narrowing the return premium, often leading to foreign capital outflows and e...