The minister claimed that the documents belonged to Petroleum and Explosives Safety Organisation (PESO) which comes under Ministry of Commerce and Industry.
"PESO has 96 CNG-testing centres across the country. These centres issue compliance plates to CNG-run vehicles and on this basis, IGL employees refill CNG cylinders. The documents which the woman threw at CM belonged to two such CNG-testing centres in Delhi and the AAP government has nothing to do with them.
A woman, identified as Bhavna Arora and claiming to be a member of the Punjab unit of Aam Aadmi Sena, threw ink at Kejriwal at a public rally yesterday accusing the AAP-led Delhi government to be directly involved in the CNG scam.
BJP also accused the AAP government of indulging in the CNG scam.
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Earlier in the day, the Aam Aadmi Party alleged that the ink attack on Chief Minister Arvind Kejriwal was part of a "big rehearsal" to possibly "physically harm" him in future and that deliberately lax security was being provided to him by Delhi Police.
AAP leader Ashutosh claimed that "not a single" security person escorted the Delhi Chief Minister, who comes in Z-plus category, during his recent train journey from Punjab to the national capital after addressing a public rally there.
She was produced before a court today which sent her to one-day police custody.