VK Sasikala will be Chief Minister by Thursday, Tamil Nadu's ruling AIADMK insisted today as Governor Vidyasagar Rao consulted legal experts on whether such an oath ceremony should be held at all. Adding to the ruling party's pain, a veteran leader went public with his strong disapproval of Ms Sasikala - former Chief Minister Jayalalithaa's long-time friend - being promoted. Mr Pandian said Jayalalithaa's death was "unnatural". Ms Sasikala should be investigated, he said, adding that she doesn't deserve any post either in the party or the government. The Governor is expected to return to Chennai by tomorrow.