We recommend you to continue with the trade SMS facility as,

1. Trade confirmation SMS is absolutely free

2. It informs you about your orders which get fully traded

3. It specifies the quantity and the price at which the order got executed

However if you still wish to deactivate the service you can call us at 1800-209-9191, Mon-Sat from 9:00 AM - 6:00 PM and request the same.