India Bonds Rally on RBI's $32 Billion Cash Infusion

India's government bonds saw their best gains since May after the Reserve Bank of India's (RBI) announcement of a significant liquidity injection to handle tight market conditions.  

RBI's Liquidity Measures  

The RBI revealed plans to purchase 2 trillion rupees worth of government bonds in four tranches spanning December and January, alongside a $10 billion foreign exchange swap scheduled for next month. This infusion, which amounts to about $32 billion, aims to ease supply pressures and stabilise borrowing costs due to recent liquidity issues. The central bank had already acquired 1 trillion rupees in bonds and conducted a $5 billion foreign exchange swap earlier in December. 

Bond Market Rally  

The 10-year government bond yield dropped sharply to 6.54%. This is its largest single-day drop since August 14 and the highest overall gain in seven months. Yields for different maturities also fell, with the 9Y-10Y segment at 6.48% and GS 2035 yielding 6.562% according to recent data. Overnight index swap rates fell across the curve, showing increased market confidence after the announcement. 

Context of Liquidity Tightening  

Banking system liquidity has tightened significantly. As a result, yields have risen to multi-month highs because of high government debt issuance, estimated at 8.1 trillion rupees for the next quarter. The RBI is trying to manage cash drains from dollar sales that support the rupee, which is Asia's worst-performing currency this year due to global pressures such as US tariffs. In 2025, the RBI purchased a record 6.5 trillion rupees in bonds and injected 4.7 trillion rupees through FX swaps and cuts to the cash reserve ratio. 

Broader Market Impact  

The rally affected bond maturities. Positioning data indicated that market participants, including the RBI, purchased a net of 47.4 billion rupees in government notes. These actions show the central bank's commitment to keeping financial conditions stable and supporting economic growth. As of late December, indicative yields for segments like 4Y-5Y stood at 6.3254% for the 6.01% GS 2030, highlighting ongoing downward momentum.