The Reserve Bank of India raised trading targets for the country’s bond market makers in a bid to boost liquidity, driving a surge in activity in the 10-year benchmark security, according to people familiar with the development.

Each of the 21 primary dealers must trade at least 4 trillion rupees ($41.8 billion) of bonds in the financial year starting April, up 48% from last year’s target, the people said, asking not to be identified as the matter is private. The RBI notified primary dealers of the targets in writing, the people said.