Byju's, a Bengaluru-based edtech unicorn, agreed to acquire Great Learning, a professional and higher education platform, for $600m. "With this acquisition, we now have a big presence in three verticals -- schools, test prep and the higher education and upskilling segment. Most of these platforms can be scaled up globally except for test prep where we will focus only on India through Aakash," Byju Raveendran, Byju's CEO.