The victim, identified as Rizwana had arrived at Ghatampur railway station here and was heading towards the nearby bus stand when the duo stopped near her.
They stabbed her and snatched her purse, gold ring and a chain, police said, adding, they fled after leaving her seriously injured.
According to the police, several people were present there at the time of the incident but none of them came forward to help her.
The victim was rushed to a hospital and later transferred to the city medical college as her condition deteriorated, they said.