Nearly 50 people fell ill after having lunch at the staff canteen of luxury hotel Shangri La's-Eros on Wednesday.
Those taken ill were mostly hotel staff members. They were taken to the nearby Ram Manohar Lohia (RML) Hospital after they complained of nausea and severe stomach ache.
"All of those who have been brought here have suffered from minor food-poisoning. However, none of them is critically ill," said Dr TS Sidhu, medical superintendent, RML.
The people were taken to the hospital around 4.30pm and were discharged after being kept under observation for a couple of hours.
"We have given anti-vomiting injections to some of those who complained of nausea and intravenous drip. None of them needed hospitalization and were managed in the hospital emergency," added Dr Sidhu.
"More than 70 colleagues reported feeling unwell. The hotel's in-house doctor immediately attended to them and subsequently some were sent to RML for further medical assistance," a statement from the hotel said.
"The hotel is extending its fullest cooperation with the health authorities to determine the cause of their symptoms and will conduct an internal investigation as well. Shangri-La maintains stringent hygiene policies and adheres to the government's Food Safety Management System to ensure a clean and safe environment for our colleagues. The management team is closely monitoring the health status of the colleagues and will render any required assistance during this time," the statement said.
Hotel officials said food for the staff is prepared in a separate kitchen located on the ground floor. The kitchen for the guests and restaurant is different.
KC Dwivedi, additional CP (New Delhi), said the matter came to their notice around 5.30 pm. "We are recording the statements of those who were admitted in the hospital. A case will be registered and action will be taken accordingly," said Dwivedi.