New Delhi/Nagapattinam, Dec 25 (ANI): The World Health Organisation (WHO) on Wednesday called for strong response and preparedness ahead of 10th anniversary of Indian Ocean tsunami. More than 16,279 people in India were killed on the morning of December 26, 2004. A total of 730,000 people in India were displaced and 157,393 buildings and homes damaged or destroyed a decade ago when the enormous waves smashed into the coast. According to government records, India's worst affected district was Nagapattinam, where 6,065 people were killed; more than 200 children were orphaned, while nearly 900 were left with only one parent.