MUMBAI, March 7 -- A 63-year-old retired Air Commodore lost Rs.1.45 crore to online share trading fraud after being approached by a gang on WhatsApp which lured him into making 16 bank transactions with the promise of high returns. After the transactions, the complainant, who was made to believe he was investing in shares, noticed a balance of Rs.8 crore in his virtual trading account, but could not withdraw it. This led him to doubt the authenticity of the gang's claims and he approached the West Cyber police, who registered an FIR on March 5....