An Adani filing with the Bombay Stock Exchange (BSE) termed the WSJ report as "baseless and mischievous".
"Adani categorically denies any deliberate engagement in sanctions evasion or trade involving Iranian-origin LPG. Further, we are not aware of any investigation by US authorities on this subject," the company said.
"Any suggestion that Adani Group entities are knowingly in contravention of US sanctions on Iran is strongly denied. Any assertion to the contrary would not only be slanderous but also deemed to be an intentional act to injure the reputation and interests of the Adani Group," it said.
"This includes any shipments originating from Iran or any vessels operating under the Iranian flag. Additionally, the Adani Group does not manage or facilitate any ships whose owners are Iranian. This policy is strictly adhered to across all our ports," the company said in its stock market filing.