11 people have died after they fell unconscious due to a gas leak incident at a factory in the Giaspura area of Ludhiana in Punjab. Four more people, who were taken ill, are undergoing treatment at a hospital, police said. A rescue team was rushed to the spot, and doctors, an ambulance, and a fire brigade team have also been stationed at the spot. A 50-member team of the National Disaster Response Force (NDRF) has also reached the site. The affected area has been cordoned off.