An unidentified man has been booked for cheating a woman in Mumbai of Rs 27 lakh. The man promised to teach her stock market trading and advised her to invest in a scheme to earn 10% profit. He provided her with a fake app and bank account numbers for transferring money. When the woman tried to transfer money back to her bank account, she was unable to do so and could no longer log in. Police are investigating the case and advising people to only contact authorized brokers for stock trading.