Vodafone customers across the Tamil Nadu state are facing network issues since midnight, and the telco has officially confirmed that there's a temporary issue going on at their end, which will be solved very soon. Not only in Tamil Nadu, Vodafone users across several parts in Mumbai also reporting 'Service Not Registered' error since yesterday evening. However, the majority of the users are from Chennai of Tamil Nadu state. We have reached out to Vodafone to know what's the actual issue is, however, the company is yet to respond.
Nevertheless, Vodafone services are absolutely fine in Andhra Pradesh & Telangana regions. Voice calls, data and SMS services are working in Hyderabad city as we have personally tested it. As of this writing, there are many customers who're still facing the issue. Also, we have asked users on Twitter regarding the network outage on Vodafone, and multiple users have commented the details along with the location, while some users are crying about the super-slow 4G speeds on the network. You can find that link here.
Just yesterday, Airtel faced a minor network outage in Chennai, but the services were back in less than four hours. Airtel even acknowledged the issue saying that they were carrying out system up-gradation activity in the city. Earlier today, Airtel sent out an SMS to customers in Chennai stating as "Due to a system up-gradation activity that we did yesterday, you might have faced temporary service disruption on your Airtel Mobile. The issue has been resolved. However in case you are still unable to use the services, please switch OFF and ON your phone. We deeply regret the inconvenience."
Vodafone is yet to give an official statement on the network fix. We will update this post once the company pushes out an update. Keep checking this space for more.
March 17 update: Vodafone India has issued a statement stating "There was a technical snag that affected certain parts of Tamil Nadu, leading to an intermittent disruption in network connectivity for a short period of time. Our network team managed to resolve the problem and restored normalcy immediately.