AMRITSAR: Advocate Harjinder Singh Dhami, president of the Shiromani Gurdwara Parbandhak Committee, has strongly condemned the violation of etiquette by the Haryana Sikh Gurdwara Management Committee, nominated by the Haryana government, at the historic Gurdwaras of Ambala, Sri Manji Sahib and Sri Panjokhara Sahib.