Chennai, Aug. 1 -- Expelled AIADMK leader and former Tamil Nadu chief minister O Panneerselvam (OPS) quit the BJP-led National Democratic Alliance (NDA) on Thursday, saying "anything can happen during elections". The move came on a day OPS was seen meeting DMK chief and chief minister MK Stalin twice. "There are no permanent friends or enemies in politics. Anything can happen during elections," OPS told reporters later. The announcement came hours after Panneerselvam met Stalin during his morning walk. He, however, maintained that he moved on after conveying his pleasantries. Later in the day, too, OPS called on the CM at his residence, but called it a "courtesy visit" to enquire about health. "There were no political talks," he asserted. Stalin underwent a therapeutic procedure on July 24 and he was discharged on July 27 after successful recovery. Earlier in the day, OPS's loyalist Panruti Ramachandran announced his faction's exit from NDA at a press conference in Chennai. "The reason is widely known," he said. Asked about the reason for his exit, OPS said: "I did not feel disrespected (by the BJP) but I've self respect in politics. I've been with Amma (Jayalalithaa) for 25 years working in the government and the party." He wished the EPS-led AIADMK the best for joining with the BJP. The development comes days after OPS wrote a letter to Prime Minister Narendra Modi during his recent visit to Tamil Nadu. However, after he was denied nod, he publicly criticised the Union government on social media over the delay in disbursing Sarva Shiksha Abhiyan (SSA) funds to the state....