India won 1-0 thanks to the striker's 75th minute strike in Kuwait City.
It also said that the astrologer was introduced to Stimac by the former AIFF secretary-general Kushal Das.
Minister Anurag Thakur said that the government has relaxed its rules to facilitate the participation of the men's and women's teams.
The defending champions had drawn level 1-1 before winning 5-4 in sudden death.
India defeated Mongolia 2-0 with Lallianzuala Chhangte also scoring.
The Kerala attacker equalised in the 43rd minute after Singapore took the lead six minutes earlier.
India topped the group with a convincing 4-0 win withh Anwar Ali, Manvir Singh and Ishan Pandita also among the scorers.
The players and the support staff will assemble at Bellary on April 23 and will start training from next day till May 8.
Bahrain scored in the 88th minute to deny Igor Stimac's India a hard-fought draw.
National coach Stimac named seven newcomers in the 25-member squad for the international friendlies against Bahrain and Belarus later this month.