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"The sector has transformed India as per late Dhirubhai Ambani's vision... The sector has brought mobility to a billion people, with only one winner - the customer," he added.
He, however, said there was a sharp erosion in the competitive landscape now and that some overseas operators have left the country.
"Over the last year, operator after the operator has seen value erosion and large losses. I call this creative destruction of a sector, normally passed off as a disruptive factor," Ambani added.
He said the telecom sector needed a minimum of Rs 100,000 crore a year to expand and maintain the quality of service.