Adani Stocks: Gautam Adani-led conglomerate's flagship firm, Adani Enterprises plummeted over 20 per cent during the morning trading session on Thursday after US prosecutors in New York charged the group chairman Gautam Adani and his nephew Sagar Adani, and six others with fraud. They are accused of allegedly paying Rs 2,029 crore ($265 million) in bribes to Indian government officials.