About 2000 people were evacuated on Thursday early hours out of which earlier it was known 11 people died and above 300 people were admitted in hospital who were severely affected.
On Friday another man in Vizianagaram died due to the gas leak taking the toll mounting to 12.
Other 306 people are undergoing treatment at KGH and it is said that the condition are recovering of the patients.
The incident that left many in shock was quite a nightmare for everyone residing in the city.
The patients who are undergoing treatment, mostly belong to the age group between 3 months and 15 years.