NEW DELHI : India's federal government said on Sunday it will provide New Delhi's city authorities with 500 railway coaches that will be equipped to care for coronavirus patients, after a surge in the number of cases led to a shortage of hospital beds.The coaches will increase Delhi's capacity by 8,000 beds, home minister Amit Shah said on Twitter after a meeting with the capital's chief minister.The government will also ramp up testing in the city, especially in containment zones, conduct a door-to-door health survey of residents and provide sufficient supplies of oxygen cylinders and ventilators, he said.India is the fourth-worst affected country in the world, with cases steadily increasing.