Alibaba.com, which operates China’s biggest e-commerce Web site, is considering investing in an online trading venture in India, the company’s CEO David Wei said in New Delhi.

The Chinese company has doubled the number of its member companies there to more than 1 million since May 2008, making India its biggest supplier market after China.

According to Wei, Alibaba.com has already become one of the top-three online trading Web sites in India. He said he believes that by the end of the year it will have overtaken its rivals in number of customers.

He said that more than 20,000 Indian businesses were signing up to Alibaba’s Indian Web site per month. It was launched in October 2008 in alliance with Infomedia, India’s largest yellow pages distributor.

India’s roughly 13 million small and medium-sized enterprises make up around 40 percent of its manufacturing capacity.