HARSHAD MEHTA (1992) : Popularly known as the Big Bull, Harshad Mehta took advantages of the loopholes in the banking system and triggered a rise in the Bombay Stock Exchange .He and his associates diverted funds to the tune of about Rs 5,000 crore (Rs 50 billion) from the banks to stockbroker
TELGI (2003) : Abdul Karim Telgi , The con artist, who shook the entire nation with his mastered art of forgery in printing duplicate stamp papers. The scam spanned across 12 states and estimated to the amount of 20,000 crore plus .
VIJAY MALYA (2016) : he took heavy loans from various banks but was not paying it back. Many banks declared him bankrupt and did not provide further loans but he continued to take it from different banks using his influential position . Another unethical practice done by his airlines was that they were not paying any PF and salaries to their employees and taxes to the government.