Chennai: J Jayalalithaa undertook her final journey on Tuesday morning from Apollo Hospitals to her Poes Garden residence.
Her body was taken out of Apollo Hospitals in an ambulance.
She will be laid to rest today at Marina Beach.
The 67-year-old leader, who suffered a massive cardiac arrest on Sunday evening, passed away at 11:30 pm on Monday night, after battling for life for 75 days, the Apollo Hospitals said in a statement.
Two hours after the announcement of her death, her loyalist O Panneerselvam was sworn in as Chief Minister at a sombre ceremony at the Raj Bhawan along with all the ministers in the erstwhile Jayalalithaa Cabinet.
Jayalalithaa, who scored a historic win in the assembly elections in the state little over six months ago, was admitted to Apollo Hospitals on September 22 with fever and dehydration but she could never recover.
Meanwhile, the Tamil Nadu government announced a seven-day State Mourning from Tuesday in view of the demise of Jayalalithaa.
During the period, the national flag on all government buildings will be flown at half-mast. No official entertainment will also be held during this period, Chief Secretary P Rama Mohana Rao said in a notification.
The government also declared a three-day holiday for all educational institutions in the state.
(With PTI inputs)