Although specialists said that the chance of survival of such twins is almost nil, a medical board was formed and the twins were kept at Special Baby Care Unit at DMCH for close observation.

They were kept under the supervision of Professor Abid Hossain Mollah and Professor Shah Alam Talukder of Pediatric Surgery department.

Professor Shah Alam Talukder said the number and outline of the chambers of their heart was not well delineated.

"Even their blood circulation was not adequate. Besides, the condition of the baby on the right was deteriorating from the very beginning," he said adding that the doctors tried heart and soul for the survival of the twins.

The twins were provided with saline, injections and oxygen and even allowed for free blood tests at DMCH, but they did not survive, he added.

The twins were joined at their chest and abdomen.

The newborns, weighing five kilograms, had separate heads, four legs and four hands, but a single anus and genital with a liver and two kidneys. Yet they had eight chambers in their heart and that is why the doctors were considering them as two babies although their internal blood circulation is not separated.

Bilkis Begum, 30, gave birth to the caesarean conjoined twins on Sunday. Their father Joinal Abedin, 32, is a farmer.