Which telecom major has launched the Campaign 'Why think of seconds when you can talk for minutes' indirectly replying the Tata Docomo Ads which say 'When life can change in seconds why pay for minutes'?

BSNL (Bharat Sanchar Nigam Limited) launched the 'Why think of seconds when you can talk for minutes' campaign as a counter to Tata Docomo's per-second billing. BSNL's campaign emphasized per-minute plans as more economical and simpler. Idea Cellular had 'What an Idea!', Airtel had different campaigns, and Aircel had 'Pocket Internet' among others.