Nava Yogendra Swami : In Mayapur there was a harinam contest. Different groups were chanting, and the best chanters were to get a prize. Prabhupada called me and said, “Look, Nava Yogendra, this harinam contest is nama-aparadha [an offense against the holy name of the Lord].” I said, “Yes, Prabhupada, it’s nama-aparadha.” I told Bhavananda. Bhavananda said, “Jayapataka arranged this harinam contest.” Then Bhavananda asked Prabhupada, “This harinam contest is nama-aparadha?” Prabhupada said, “Yes, this is nama-aparadha.” They immediately stopped the harinam contest.
Harinam contest
Reference: Memories Anecdotes of a Modern Day Saint – Volume 2 by Siddhanta Dasa