Why does one receive an SMS and Email from NSE, BSE, and MCX when trading?

To ensure the security of your trading activities, exchanges send SMS/Email alerts from NSE (PDF), BSE (WEB), and MCX (WEB) on trading days. These alerts are a precautionary measure against unauthorized transactions in investor accounts.

Pro Tip: You can independently verify your trades by visiting the NSE (WEB) and BSE (WEB) websites.