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Chennai: Tamil Nadu Chief Minister K Palaniswami (R) and O Panneerselvam exchange greetings following merger of their factions in Chennai on Monday. All India Anna Dravida Munnetra Kazhagam factions led by Chief Minister Edappadi K Palaniswamy and former Chief Minister O Panneerselvam formally merged following a power sharing arrangement with the former to remain as Chief Minister and the latter his deputy. PTI Photo by R Senthil Kumar (PTI8_21_2017_000118B)