Alibaba.com, China’s biggest business-to-business website, on Tuesday said it was poised to become India’s top online marketplace by number of users as it launches its first major overseas expansion.

The company, which last year doubled the number of Indian users of its global website to more than 400,000, said it was now signing up more than 20,000 Indian businesses a month to its dedicated Indian site, launched in October in a partnership with Infomedia, India’s biggest Yellow Pages company.