Amazon has agreed to acquire Indian buy now pay later startup Axio, deepening its push into financial services in one of its fastest-growing markets as it seeks to expand credit access to millions of underserved customers.

The US technology group, which has held an equity stake in Axio for six years, signed the acquisition agreement in December after completing due diligence, the Indian startup said in a blog post.

Financial terms were not disclosed. The Bengaluru-headquartered startup, formerly known as Capital Float, raised $232 million from investors including Peak XV Partners, Ribbit Capital, Elevation Capital over the years.

The startup, which specializes in providing small-sized credit to self-employed individuals and households, said it serves more than 10 million customers and has built a loan book of over $260 million.