The photo shows the logo of Didi and Kuaidi, indicating their merger deal forged in February, 2015. [Photo: yesky.com]

China's biggest taxi-hailing app Didi-Kuaidi is now raising a new round of 2 billion US dollars investment from ventures.

A group of investors including Alibaba, Tencent and Hill House Capital are now bidding to increase their shareholding in the taxi-hailing app.

Currently, Didi-Kuadi has received over 1.5 billion USD of investment.

The funding is likely to put the company at a valuation of more than 13 billion U.S. dollars.

The funding comes as a taxi-hailing app war is escalating in China as both Didi-Kuaidi and Uber claim to have gained the upper hand.

Didi-Kuaidi claims it has taken 80 percent of the ride-sharing market while CEO of Uber Travis Kalanick earlier said Uber has taken some one million orders from passengers in China.