Indian government bonds gave up opening gains on Tuesday, as a chunky state debt supply due later in the day eclipsed the impact of the central bank’s plan to inject liquidity into the banking system through mid-February. The benchmark 10-year 6.48% 2035 bond yield was at 6.6661% at 10:00 a.m. IST, up from the day’s low of 6.6443%. [...]