World's oldest new mother, 74, and 78yo husband both in intensive care

The world's oldest new mother and her elderly husband are both being treated in intensive care, a week after the 74-year-old gave birth to twin girls.

The controversial couple, Yerramatti Mangayamma and Raja Rao, 78, from southern India's Guntur district, revealed they had delivered their daughters on September 5 following an in-vitro fertilisation (IVF) procedure.

Rao reportedly collapsed from a heart attack one day after the birth. He was taken into intensive care in the Indian state of Andhra Pradesh. 

Mangayamma has remained in intensive care since the birth, the Times reports. 

The reasons why the new mother remains in hospital are so far uncertain.

The girls are currently in the care of the couple's relatives, the Telegraph reports.

After marrying in 1962, the couple attempted to conceive naturally for years before deciding to opt for IVF treatment. As Mangayamma has already been through menopause, donor eggs were fertilised with her husband's sperm.

Mangayamma became pregnant in January and she carried to term despite doctor's concern. The twins were delivered by Caesarean section.

"I am very happy. God has answered our prayers," she told reporters after the birth.

The case has sparked intense controversy, with many debating the ethics of allowing a 74-year-old to undergo IVF treatment.

The Telegraph reports that doctor Sanakkayala Umashankar has since claimed the new mother lied about her age.

Mangayamma's niece, Lakshmi Bhia, told the Times the pair are in a stable condition and their daughters are doing well.