Controversial comments by Punjab Congress Chief Navjot Sidhu's advisers threaten to shatter his fragile truce with Chief Minister Amarinder Singh, who has publicly told them off for "atrocious and ill-conceived comments" on sensitive national issues. After the Chief Minister's warning, Navjot Sidhu summoned both his advisers, Malwinder Singh Mali and Pyare Lal Garg, to his home in Patiala this morning.