Chandigarh, Feb. 2 -- Hitting back at Navjot Kaur Sidhu after she quit the party while accusing him of selling the party for personal gains, Punjab Congress president Amarinder Singh Raja Warring on Sunday questioned her credibility and standing in party. Warring even pointed out that Navjot Kaur had been already removed from the party: "What resignation is she talking about when she is not even in the party? She was expelled from the party earlier. I don't want to say anything more about her. When a person's mental state is not right, then you shouldn't get angry about what they're saying..." Navjot on Saturday had accused Warring of surrendering the interest of party to CM Bhagwant Mann, with whom he was having "an association for personal gains". Navjot was suspended by Congress from its primary membership last month, after she sparked a political row with her "Rs.500 crore for the CM's chair" remark. htc...