The sudden resignation of Election Commissioner Arun Goel has led to a Constitutional crisis and yet the central government has not given any explanation on the matter, Congress leader Karti Chidambaram said on Monday. Speaking to reporters here, Karti pointed that no press conference was held and neither was any reason disclosed about the resignation of a person who held a constitutional post. "In a mature democracy, if a senior constitutional functionary resigns, there will be a press conference or there will be a statement, at the least to disclose the reason behind the resignation. His sudden resignation has led to a constitutional crisis and the government has not given any explanation on it," he remarked. It is a matter of anguish that such a development has taken place just before the announcement of the Lok Sabha polls, he said. Commenting on devolution of powers and issues such as levy of cess, he said the Centre does not respect the rights of state governments. Referring