Announcement in Malayalam could have saved lives, a passenger told The New York Times.
The special audit will be over and above routine checks, the DGCA chief said.
The Kerala government had asked the Tamil Nadu government to release water from Mullaperiyar in a phased manner when the water level reaches 136 feet.
The flight was part of the Vande Bharat programme that was bringing back Indians from abroad.
Chief Minister Pinarayi Vijayan said that landslides, flooding, mudslides were a possibility due to heavy rains that have lashed the state since Tuesday.
Jolly is accused of murdering six members of her family, including her husband.
The parish priest at the Koodathayi church talks about Jolly Joseph, accused of murdering 6 family members, and the Thomas family.
Jolly's brother Nobi spoke to HuffPost India, his first interview to the media since his sister’s arrest on October 5.
Doubts raised over a will led to a family dispute over property. And then it snowballed into a major murder probe.
Details revealed by the police so far suggest the investigation into the Koodathayi murders is primarily centred around suspicion, circumstantial evidence, and the confessions of Joseph and two other accused.