NEW DELHI—Rescuers resumed their search Thursday for survivors and victims of a large landslide that swept across a highway in the mountains of northern India a day earlier, killing at least 13 people. A bus, a truck, and two cars were smashed in the landslide in Himachal Pradesh state’s Kinnaur district. Dozens of people are still feared trapped in the bus, which was buried by the debris, a police statement said. More than 100 rescuers, including police and paramilitary personnel, have been deployed to clear the rubble using four earth removers. Television images of the disaster showed boulders and rocks rolling down the hillside before crashing into vehicles on the highway. So far, 14 people have been rescued, said Vivek Kumar Pandey, a spokesman for a paramilitary force involved in the search. They have been taken to hospitals but are not seriously injured, district administrator Abid Hussain Sadiq said. Meanwhile, …