US-based e-commerce firm Amazon has reportedly taken 30,000 square feet of office space on lease in Mumbai for its corporate headquarters.

The firm, which has recently emerged as the biggest online retailer in India, will pay a yearly rent of Rs 9.5 crore for the office space at One BKC building in the Bandra Kurla Complex area of Mumbai. Sales & marketing, and the regional seller services teams of Amazon will work from this office.

The company may also take another 10,000 sq ft in space the same building later this year, sources told Business Standard.

"The Mumbai office is expected to facilitate seller services in the region," the source said.

Amazon's office in Bengaluru will continue as its back-end hub, the individual said.

"We don't comment on anything we may or may not do in the future," said an Amazon India spokesperson.

However, a spokesperson for Radius Developers, the owner of the building, has confirmed Amazon's move.

Last year, Amazon took 1.3 million sq ft office space in Bengaluru on lease from IT park developer Bagmane in its building on Outer Ring Road in the city.

Domestic e-commerce major Flipkart had taken 3 million square feet of prime office space in Bengaluru in 2014. The deal was regarded as the largest office deal in the country thus far, and Flipkart pays Rs 300 crore annual rent to building owner Embassy Group.

Mumbai has witnessed large office property deals recently. Last year, pharma major Abbott bought 435,000 sq ft office space in Godrej BKC from Godrej Properties in an deal worth nearly Rs 1,480 crore. Cisco, the US-based networking equipment maker, has also taken 50,000 sq ft space in One BKC on lease, according to sources.