Bengaluru-based DriveU, a startup that aggregates on-demand drivers for private car owners, has acquired Gurgaon-based CallAtHome for an undisclosed amount. Founded by Alok Inamdar, Satyendra Singh and Anubhav Sood, CallAtHome provides users on-demand driver services. DriveU, already operational in Bengaluru, Chennai, Mumbai and Delhi, has introduced its service in Gurgaon through the acquisition.