Reasons for AL's defeat

After being defeated in the five city corporation elections, AL sits to find out the reasons behind their defeat. Party sources said national issues, religious propaganda against AL, etc., are the reasons behind their defeat. But I think CTG issue, share market, Hall-Mark and Padma Bridge scam, corruption of the ministers, etc., are the major reasons. AL should rectify its activities if it doesn't want to be defeated in the upcoming national election.