As per reports, the incident took place at Mahaveer Lane of Parabeda in Jaypore town under Koraput district.
The deceased has been identified Rashmita Nayak. She was studying Engineering in Bhubaneswar.
Rashmita was reportedly found hanging from the ceiling of their house in Jeypore this morning. She had gone to Jeypore from Bhubaneswar yesterday after hearing the death of her younger brother Sibasish Nayak on Friday.
On being informed, Jeypore Town Police reached the spot and started a probe into the incident.
The exact cause of death of the siblings is yet to be ascertained.
A pall of gloom has descended the locality after the demise of the siblings in the gap of two days.