Singapore's health minister has warned against the risks involved in the surgery to separate the Indian twins joined at their head.

Reputed Singaporean neurosurgeon, Keith Goh, emphasized that the state government of Andhra Pradesh in India has urged him to surgically separate five-year-old Indian twin sisters Vani and Veena.

Khaw said that in certain situations, it may be better not to operate on conjoined twins. In some cases, surgeons also have to pick one twin to die in order to save the other. 

He said: "To change the course of nature may do more harm than good."

He questioned: "Even those who survive would often be left with brain damage. So, to what extent is this quality of life?"

The minister’s statement was in lieu with history of such operations in his country. Separation of 11-month-old Nepalese twins Ganga and Jamuna Shrestha who were born with fused skulls left Ganga with brain damage and Jamuna unable to walk. Last year, Ganga died from respiratory problems at a hospital in Kathmandu. 29-year-old Iranian twins, Ladan and Laleh Bijani joined at the head, died from severe blood loss following a 52-hour operation.