Nationalist Congress Party (NCP) today termed imposition of President's Rule as the "darkest" day in the history of Arunachal Pradesh. <br/><br/>Expressing solidarity with ruling Congress in the state, party's women wing President Fauzia Khan told reporters at Arunachal Press Club in Itanagar that the party would protest the 'hasty' decision of the Centre. <br/><br/>Criticising Governor Jyoti Prashad Rajkhowa for his decision to advance the assembly session, Khan alleged that the Governor had transformed the Raj Bhawan into the office of BJP.