He was grated bail on September 24 by the Allahabad High Court.
Jail Superintendent SP Yadav said,"Pandher got the bail on September 24 and today he was released after all the paper work was done."
The 42-year-old Noida-based businessmen was arrested in December 2006.
The serial killings came to the light in December 2006 after discovery of human remains from a drain behind Pandher's house in Nithari in Noida on the outskirts of Delhi.
Both Pandher and his domestic help Surendra Koli were arrested.