Following this, Anil Dhirubhai Ambani Group (ADAG) filed an FIR against unidentified persons on Thursday, they said.
According to the police, Posters carrying objectionable remarks about Ambani and his corporate entity along with its logo were found pasted at various places in suburban Bandra.
"A mobile number was also mentioned on the stickers," Mangesh Pote, Senior Inspector at Khar police station, said.
"A manager-level ADAG official lodged complaint for defamation as well as about misuse of the Group's logo," he said, adding that a probe was on to identify the culprits.
