New Delhi, May 1 -- The Supreme Court directed the Centre to regularise daily wage workers employed with the Indian Space Research Organisation (ISRO) within four weeks, observing that they too have an indispensable role in India's space mission success that cannot be disregarded or discriminated against by the state, being a model employer. The judgment passed on Wednesday rebuked the Centre for dragging these workers, appointed between 1991 and 1997, through litigation spanning various courts and tribunals, even when the top court gave a clear instruction in 2011 to make them permanent. A bench of justices Vikram Nath and Sandeep Mehta said, "In celebrating the glory of our scientific fraternity, we must not overlook the invisible yet ind...