Sun Chi, an analyst with the Nomura Securities, said inflation pressure would persist for a period of time, which indicated it was only early days in the monetary tightening circle.

"We expect the interest rate will be lifted by another 75 basis points this year. The bank's reserve requirement ratio will be increased by another 100 basis points," he said.

Chinese Premier Wen Jiabao said Wednesday that keeping the price levels basically stable was the primary and most urgent task for the government's macro economic control this year.

"Judging from the inflation situation in the first quarter, we are still under great pressure of price hikes," Wen said, adding, "We should never lower our guard."

Wen expected inflation pressure to continue in the coming months due to soaring commodity prices around the world, higher food and housing prices, and higher labor costs in China.

The People's Bank of China, the central bank, announced the second interest rate hike this year on April 5. It was also the fourth increase since the start of 2010.

After the increases, the one-year deposit interest rate will climb to 3.25 percent while the one-year loan interest rate will reach 6.31 percent.

To mop up the excessive liquidity that helps fuel inflation, China's central bank has raised the reserve requirement ratio for commercial banks nine times since the beginning of last year.

March PPI growth advances to 30-month high