New Delhi, Feb 22 Delhi government employees on Thursday observed a five-minute silence outside their respective offices as a protest against the alleged assault on Chief Secretary Anshu Prakash by AAP MLAs. The five-minute silence was observed at Delhi Secretariat, Delhi Transport Corporation (DTC) headquarters, the Women and Child Development department among other offices. The IAS Association said that the silent protest would be observed everyday till steps are taken to "ensure the safety and dignity" of the government staff in the city. The Chief Secretary on Tuesday alleged that he was beaten up by two Aam Aadmi Party MLAs in the presence of Chief Minister Arvind Kejriwal at the Chief Minister's residence on Monday midnight, where he was summoned for an emergency meeting. Following the allegation, the IAS Association on Tuesday took the decision that officers would not meet or talk even over the phone to the Chief Minister, his ministers or MLAs till Kejriwal apologised and took action. "The assault on the Chief Secretary has breached the faith of all government employees in the political executive of Delhi. "The employees of Delhi Government and other organisations will observe a five minute silence outside their respective offices to express their anguish over the breach of faith by the political executive," it said in a statement. Both the alleged attackers -- Amanatullah Khan and Prakash Jarwal -- have been arrested and sent to judicial custody.