Facebook-backed Unacademy, an online learning platform, agreed to acquire PrepLadder, an ed-tech startup, for $50m. "We are extremely happy to be a part of the largest learning platform in India. Unacademy and PrepLadder are working towards the common goal of making quality education accessible to all. We believe that the synergies between both products will truly create a mark in the industry," Deepanshu Goyal, PrepLadder Co-Founder.