Examine how central bank communication, distinct from actual rate decisions, can influence bond markets and the cost of government borrowing.

Under flexible inflation targeting, a central bank steers not just today's repo rate but expectations of the entire future rate path. India's August 2026 episode — where the RBI held rates yet its minutes triggered a bond sell-off — shows that communication is itself a policy instrument.

Communication as a distinct instrument

• Statutory transparency: Section 45ZL of the RBI Act, 1934 mandates publication of MPC minutes on the fourteenth day, carrying member-wise votes and individual statements — a channel separate from the decision-day resolution [1].
• Forward guidance and stance ("accommodative", "neutral", "withdrawal of accommodation") signal direction even when the rate is unchanged.
• Credibility of the 4% ± 2% CPI target rests on anchoring expectations, so words move markets as much as actions [2].

Transmission to bond markets

• In August 2026 the repo rate was held, but hawkish minutes — members flagging limited room for easing — pushed the benchmark 10-year yield up 4–5 bps to about 6.87%, a two-month high, with 5-year yields up ~8 bps [3].
• Since bond prices move inversely to yields, this repricing of the expected path is a sell-off; derivative gauges like the OIS curve began pricing an eventual hike [3].
• A gap between a softer policy statement and hawkish minutes wrong-foots investors, raising volatility and questions of communication discipline [4].

Impact on government borrowing cost

• G-Secs are the benchmark for all rupee debt; higher secondary-market yields raise cut-off rates at fresh auctions, enlarging interest outgo mid-year and straining fiscal arithmetic.
• Corporate bonds priced off the sovereign curve turn costlier, risking crowding out of private investment.
• Conversely, credible dovish guidance compresses term premia, easing the borrowing programme. External shocks — notably rising crude — compound, but do not replace, this signalling effect [3].

Thus communication is a low-cost yet powerful lever: consistency between resolution, stance and minutes, with clearly stated data-dependence, would let the RBI guide markets smoothly while preserving both transparency and price stability.