Raut was arrested yesterday by Pune crime branch in the temple town where he had arrived from Delhi to offer prayers, they said.
Raut and his three accomplices had kidnapped the 28-year-old techie. The woman was later found raped and murdered on October 7, 2009, in Zarewadi forest area in Khed.
The accused was arrested but had escaped from the Sasoon hospital on September 17, 2011, while in custody and had been absconding since then.
During investigations, it was revealed that Raut had used a driving licence and also a PAN card in the name of Ravikumar Bhalla.