Airtel — no option to deactivate broadband connection

Address:

Gautam Buddh Nagar, Uttar Pradesh

Airtel does not provide any option to deactivate a broadband connection. They have provided 10 options for getting a new connection, but they make people struggle like beggars for deactivation of account.
I wonder how such unprofessional business practices are alllowed. It's like, if you dare take a airtel broadband connection, we will make you suffer forever, even if you want to deactivate your account after clearing all your dues.