The 28-month-old twins, Jaga and Baliya, who were joined from their heads, were separated after an 18-hour long surgery.
However, the condition of the kids are 'critical' and will need monitoring, said a senior doctor.
Dr Randeep Guleria, director AIIMS said, "Surgery has been successful but they are still very critical and in ICU. They will need monitoring over the next 2-3 weeks."
The 28-month-old twins, Jaga and Baliya, who were joined from their heads, were separated after an 18-hour long surgery, which started at 9:00 am on Wednesday and ended at 3:00 am on Thursday.
A team of 20 surgeons performed this 16-hour-long marathon surgery.
"This is one of the rarest operations that has been done, a complex surgery done in stages", added Dr Guleria.
The twins hail from Milipada village in Kandhamal district, Odisha.
A K Mahapatra, the chief of the neurosciences centre, earlier during a press conference on Thursday, said this type of surgery is highly challenging as mortality in such cases are very high.