March 30 (Reuters) - Hong Kong's benchmark Hang Seng index posted its biggest daily gain in more than two months on Monday, as investors bet that more infrastructure spending and policy stimulus will re-energise China's cooling economy.
The Hong Kong China Enterprises Index, which tracks Chinese companies listed in Hong Kong in the form of so-called "H shares", surged 3.4 percent, its biggest daily gain this year.
Chinese regulators said on Friday it would let mainland mutual funds invest in Hong Kong shares via the Shanghai-Hong Kong Stock Connect scheme.
Shares rose after Beijing unveiled details of its ambitious "new Silk Road" initiative to improve links from Asia to Europe and Africa, which analysts expect would trigger a wave of investment.
Also boosting shares were dovish comments from central bank Governor Zhou Xiaochuan at the weekend that reinforced expectations for further monetary easing.
The Hang Seng index rose 1.5 percent, to 24,855.12, while the China Enterprises Index gained 3.4 percent, to 12,306.56 points.
The HSI's gain was the biggest since Jan. 21.
Among the most actively traded stocks on Hong Kong's main board were SMIC, up 5.6 percent to HK$0.75 Bank Of China, up 3.2 percent to HK$4.46 and China Mining , up 9.7 percent to HK$0.17.
Total trading volume of companies included in the HSI index was 2.7 billion shares. (Writing by Samuel Shen and Pete Sweeney; Editing by Richard Borsuk)