FSSAI officials said they received a call from the city police at 1.30 pm informing them that six people who had their lunch at the restaurant experienced severe vomiting and giddiness.
Tamil Nadu Chief Minister M K Stalin will launch the scheme on September 15 on the birth anniversary of former chief minister and DMK founder C N Annadurai.
Tamil Nadu Municipal Administration Minister K N Nehru said fire and rescue personnel, police officers, officials from Greater Chennai Corporation and National Disaster Response Force (NDRF) are involved in the rescue operation.