A fresh Twitter war has broken out between Arvind Kejriwal and Captain Amarinder Singh. A month ago they had traded barbs and challenged each other to a public debate on the social media. It all started when the Punjab Congress chief tweeted that Delhi MLA Jarnail Singh's nomination from Lambi constituency against Chief Minister Parkash Singh Badal showed "AAP-SAD collusion" to ensure Badal's victory. "Reeks of an underhand deal!" Singh tweeted. Kejriwal immediately retorted, "Sir, r u fighting against Prakash Badal ji or Sukhbir Badal or Majithia or safe seat?" Singh quickly shot back "Badals' story is over. You tell me where you're contesting from and I will come fight you there!"