She also announced a solatium of Rs one lakh each to the next of kin of the victims from the Chief Minister's Relief Fund.
"I have ordered the District Administration and Police to take legal action against those responsible," she said in a statement here.
A family of nine from Chennai drowned after the coracle, in which they were travelling, capsized in Hogenakkal yesterday.
Out of nine, three persons, including a seven year old boy, managed to reach the banks. Two bodies were taken out yesterday by Fire and Rescue personnel and two other bodies were retrieved today.