The money is for damages done to his Soka home in Ibadan during the July 1 invasion.
Two people were killed while 12 others were arrested and firearms and ammunition seized during the invasion in Ibadan, Oyo State capital.
Igboho himself escaped arrest during the raid and was promptly declared wanted by the DSS.
He filed a fundamental human rights suit against the DSS in July, and the court agreed with his motion in a ruling delivered on Friday, September 17.
Justice Ladiran Akintola ruled that the bloody raid was arbitrary aggression fueled by prejudices.
He ordered DSS to pay N20 billion to Igboho as exemplary and aggravated damages.
The Attorney General of the Federation, and the Director DSS, Oyo State, were also listed as respondents in the suit.
Igboho was arrested a couple of weeks after the raid in the neighboring Benin Republic where he was attempting to fly to Germany with his wife.
He’s remained in detention there and is fighting Nigeria’s attempts to extradite him to face charges in the country.
Sunday Igboho months ago, started leading a movement to enforce the secession of the Yoruba-speaking southwest region from Nigeria.
He has made repeated claims that the ethnic group, and others, are being marginalized by the current government of President Muhammadu Buhari in favour of his own Fulani ethnic group.