(a) the steps taken by the ASI to do marine archaeological research in Tamil Nadu alongwith sites so far explored in the eastern coast in this regard;
(b) whether the ASI has not taken any steps so far to conduct marine archaeological exploration in Tamil Nadu after the preliminary survey;
(c) if so, the reasons therefor;
(d) whether the ASI has started a separate wing for marine archaeology at Delhi and propose to start the same in Chennai; and
(e) if so, the details thereof?