New Delhi, Oct. 1 -- A glucometer-like device that can detect the level of antibodies against Covid-19, another that uses magnetic nanoparticles to collect virus fragments or antibodies from a sample within minutes, and a third the size of two stacked laptops that can perform molecular Covid-19 tests without trained manpower have all been developed in three to four months by startups supported under the department of science and technology's CAWACH initiative....