Dow Jones Newswires, citing a person familiar with the issue, said the latest round of funding could close as soon as Monday.
It was being led by tech investment fund All-Stars Investment and also involved were current shareholders Russian investment firm DST Global and Singapore sovereign-wealth fund GIC, the report said.
Private-equity firm Yunfeng Capital which is affiliated with Alibaba Group Holding Ltd. chair Jack Ma, was also taking part.
Established only four years ago, Xiaomi was valued at $10 billion (roughly Rs. 63,212 crores) in a previous round of funding in August 2013.
A company spokesman declined to comment, the report said.
Mainland China is the world's largest smartphone market, and Xiaomi's cheap, feature-packed handsets ousted Samsung as the top seller there in the second quarter.
Get your daily dose of tech news, reviews, and insights, in under 80 characters on Gadgets 360 Turbo. Connect with fellow tech lovers on our Forum. Follow us on X, Facebook, WhatsApp, Threads and Google News for instant updates. Catch all the action on our YouTube channel.
TP-Link India Starts Local Manufacturing of Wi-Fi 7 Products Following 6GHz Spectrum Delicensing
Realme P4s 5G India Launch Timeline Tipped Along With Storage Variants, Colourways
Honor 600 Pro With Dimensity 8550 Elite SoC Launched Alongside Honor 600: Price, Specifications