Education technology firm Byju’s on Wednesday said it has acquired US-based learning platform Osmo for $120 million as part of an aggressive international expansion plan. This is the fifth and so far the largest acquisition by the Bengaluru-based unicorn which was recently valued at $3.6 billion in its latest round of funding Osmo, founded by India-origin Pramod Sharma, produces augmented reality games for iPads and iPhones targeted at children.Byju’s said it wants to tap Osmo’s physical-to-digital technology and content to expand its current offerings. “With this acquisition, we are expanding into a new age demographic and entering the world of younger kids (age group 3-8),” Byju’s said in a statement. “Our partnership with Osmo will help kids acquire love for learning at an early age by introducing ‘play-based learning’.”The Osmo’s team, based in Silicon Valley, will continue to operate independently. “We started Osmo for parents looking for a way to combine physical, hands-on play with the power of digital platforms to foster a love of learning,” Sharma said in the statement.Byju’s had earlier acquired Math Adventures, TutorVista, Edurite and student assessment platform Vidyartha. Last month, South Africa’s Naspers Ventures led a $540-million financing round of Byju’s with others like Canada Pension Plan Investment Board (CPPIB) and private equity firm General Atlantic also participating. At the time, the Bengaluru-based company had said it was looking for acquisitions to accelerate its international expansion.Owned by Think & Learn Private Limited, Byju’s plans to launch products internationally with a focus on English speaking markets like the US, UK, and Australia.Byju’s-The Learning App, which is the edtech player’s flagship offering, caters to students from classes four to 12. Till June this year, it had around 20 million registered students and 1.26 million annual paid subscribers. This has now increased to 30 million registered students and 2 million annual paid subscribers. The firm reported revenues of Rs 490 crore for 2017-18, a 97% jump over the previous year. It has targeted revenues of Rs 1,400 crore for this financial year.