Reliance Jio: 'Free offers sparked unprecedented disruption'
 

http://img-s-msn-com.akamaized.net/t...6&q=60&o=f&l=fWithout naming Jio, Birla in a letter to shareholders of Idea Cellular said flourishing telecom industry witnessed a 2 per cent decline in annual revenues in 2016-17 fiscal.

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