A Coimbatore-based robotics engineer, Karthi Velayutham has created a 'Covid-19 Smart Swab Robot’ for sample collection. The robot uses an app connected to the smartphone to function. The robot helps avoid any human contact, and thus, eliminates therisk of transmission of the virus. It took Velayutham Rs 2,000 to make the robot, which collects the swab sample in just two minutes. He shared with news agency ANI that if approved by authorities, his robot could work well in private and public testing labs.