Airtel is one of the largest telecom operators in India and that means it’s pretty important to activate DND on Airtel. If you don’t do this, you will be inundated with spam messages and calls. There’s no real way to avoid all of this without using apps that have the potential to violate your privacy by constantly reading your messages and checking who’s calling. One thing that you can do to reduce this spam is to activate DND (do not disturb) on Airtel. The good thing is that it can easily be done via a phone call or an SMS.
Go to the DND page on Airtel’s website. Click the Click here button in the big red square titled Airtel Mobile Services. Enter your Airtel number. Click Get One Time Password. Enter the OTP which will arrive in an SMS on your phone. On the next screen, click Stop All. Click Submit. Call 1909 and follow the IVR prompts. This will activate DND. Send START 0 in an SMS to 1909 to activate full DND on your Airtel number.