(a) whether a large number of sea creatures such as `Coral-Mengruz` died as a result of leakage of crude oil pipe line of Indian Oil Corporation;
(b) if so, the details thereof and the losses suffered thereby;
(c) the persons found responsible in this regard and action taken against them so far; and
(d) the measures taken or proposed to be taken to avoid such incidents and save the environment and sea creatures in future?