Shikshak is an online training tool developed by New MEK Solutions to address faculty shortages at educational institutions. It allows for live online classes, guest lectures, simultaneous teaching across multiple branches, and doubt sessions. Key features include video conferencing, desktop sharing, a whiteboard, and communication via audio and video. Shikshak provides benefits like equitable access to top instructors, reduced travel costs, and creating a virtual classroom environment for remote learning. It is an affordable and customizable solution that requires minimal hardware and setup.