Chennai: The Tamil Nadu Assembly on Tuesday witnessed heated exchanges between former chief minister O Panneerselvam and the treasury benches over alliance shifts, and the debate turned personal with the members trading barbs over changing political allegiances. The debate quickly turned personal as members traded barbs over changing political allegiances. "I carry his photo to express my gratitude to him," the former chief minister explained. Taking exception to the remarks, Sengottaiyan clarified that he was not questioning personal photographs he displayed, but found the opposition leader's remarks about the budget degrading. "He served as chief minister three times under Amma's (Jayalalithaa) leadership.