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It costs nearly 1 billion dollars.
1 billion(1,000,000,000) = 1 million * 1000 = 1,000,000,000 = 100,00,00,000(Indian decimal connotation) = 100 Crores.
1 Billion = 100 Crores
1 Billion USD = Rs. 100 x 45 Crores = Rs. 450,00,00,00,000
unofficial cost would be more that this