"The Dera authorities have deposited its firearms with the state government and are cooperating with the state government," Mr Khattar told media persons in Rewari in south Haryana, without eleborating on the nature of items seized from the Dera.
Police sources said weapons and other objects that could be used in violence were seized from the campus.
About searches at other campuses of various Deras in Haryana, Mr Khattar said: "It is okay if these are running in a proper manner. Action will be taken if a complaint is received."
The conviction led to violence by Dera followers in Panchkula and Sirsa towns in Haryana, leaving 38 people dead and 264 others injured.
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