The officiating Foreign Secretary Anil Wadhwa summoned Pakistan High Commissioner Abdul Basit to South Block and conveyed India's unhappiness over the order in strong words. Wadhwa is officiating as the Foreign Secretary in the absence of S Jaishankar, who is travelling with the Prime Minister.
"India today conveyed its outrage at the release of Lakhvi, one of the key accused in the Mumbai terror attacks. This goes against Pakistan's professed commitment to combat terrorism, including its recently stated policy of not differentiating amongst terrorists," Spokesperson in the External Affairs Ministry Syed Akbaruddin said.
The matter was also "raised at high levels" in Pakistan through Indian High Commission, official sources said.
India's reaction came within hours of the Islamabad High Court declaring as void the detention order of the LeT operations commander Lakhvi, who was also the 2008 Mumbai terror attack mastermind, and ordering his immediate release.
After his meeting with Wadhwa, Basit said, "Lakhvi may have been granted bail, but the trial continues. We all are working to complete the trial. Let the judicial process take its course."