Punjab Chief Minister Captain Amarinder Singh has slammed AAP's Leader of Opposition Sukhpal Khaira for backing Punjab Referendum 2020, which seeks people's vote to "liberate Punjab from Indian occupation" and form Khalistan. On the matter, CM Singh tweeted, "Mr Arvind Kejriwal...Please clarify your stand on this and ask your party-men to act responsibly. Do see what this referendum stands for."