Trishna and Krishna, conjoined twins from India, were separated in an operation lasting 25 hours in Australia, according to this BBC article. Twenty. Five. Hours. The girls were brought to Australia by the Children First Foundation two years ago because they were extremely sick in an orphanage in Dhaka, and the operation was performed at the Royal Children's Hospital in Melbourne.
Both Trishna and Krishna are awake now and the outlook for both girls is very good. The girls were craniopagus twins, attached at the skull, so the surgery involved separating brain matter and circulation. That's some delicate and intensely technical surgery!
Wishing Trishna and Krishna a speedy and full recovery!