I have been a customer of Cellular Operators Assoc...
I have been a customer of Cellular Operators Association of India (COAI) for several years now and I must say that their services are average. The network coverage is decent, but there are frequent call drops and slow internet speeds. The customer support is not very helpful and resolving issues takes a lot of time. Overall, I am satisfied with their services, but I hope they can improve in the future.