The release was secured after intense efforts made by the government, sources said.
"We have secured the release of 5 Indian sailors from pirates in Nigeria. Our thanks to the President of Nigeria. I appreciate the good work done by our High Commissioner Ghanshyam," Swaraj said.
The sailors were kidnapped in Warri, Nigeria on December 11 after which Swaraj had sought a report and Indian High Commissioner in Nigeria A R Ghanshyam met President of Nigeria on December 12.