'Saeed has been freed as the government decided not to detain him in any other case,' a top Pakistan official told PTI.
This is the first time the Pakistan army has publicly backed the arrest of India-focused jihadis.
The visiting Pakistani JIT will begin recording the statements of the witnesses in the Pathankot terror attack case from Thursday.
Jamaat-ud-Dawah chief Hafiz Saeed's detention may help ease India-Pakistan tension, media reports in Islamabad said on Tuesday even as supporters of the Mumbai attack mastermind launched protests across major cities against the government's decision which they say was taken under pressure from the US and India.
The board rejected the government's plea to extend his detention for another 3 months.
A news report in daily Pakistan Today quoted an unnamed JIT member to say that the attack was nothing but 'vicious propaganda' against Pakistan as Indian authorities did not have any evidence to back their claims.