Rajnath said the opposition parties were trying to cover up their own "mistakes and weaknesses".
The Directorate of Enforcement (ED) is conducting searches at multiple premises of the Hiranandani Group in Mumbai on charges of violations under the Foreign Exchange Management Act (FEMA), according to sources.
Kejriwal, who is in jail till July 12 in the Central Bureau of Investigation case related to the excise policy, appeared before the court of special judge Kaveri Baweja through video conference.