A total of 27 trekkers were rescued from the blaze in Theni, some 520 km from here.
The remaining are warded in the Government Hospital in Theni and in a private hospital at the request of the injured.
Indian Air Force (IAF) helicopters brought the remains of eight of the killed from the hills. The remains of one more person was earlier brought down by road.
The bodies have been sent for identification and they would be handed over to the relatives after autopsy.
Speaking to reporters, Palaniswami said the trekking expedition had been done without getting the necessary permission from the Forest Department.
He said a detailed probe will be held into the accident.
The IAF had mounted a search and rescue operation since Sunday. Apart from its 15 commandos, the IAF pressed three of its helicopters in the rescue mission.
What had started as an adventure trip for the trekking group of eight men, 25 women and three children turned into a nightmare on Sunday afternoon as they were caught up in the massive blaze.
The group had camped at a place up in the hills on Saturday night. They were supposed to return on Sunday.
The CTC website does not have any name or number of the persons who are in-charge of the trekking expeditions.
According to the website, the CTC is a non-profit, volunteer group which organises outdoor sports, environmental conservation and social activities throughout the year on weekends and weekday mornings.
"Founded in 2008 the group has grown to one of the most active and largest in South India with over 40,000 members and hundreds of activities throughout the year.
"All activities are free -- expenses are shared equally among participants," says the website www.chennaitrekkers.org
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