(a) whether the Telecom Regulatory Authority of India proposes to make it mandatory for mobile operators to offer at least one tariff plan based on `per second` billing in the country;
(b) if so, the details thereof;
(c) if not, the reasons therefor;
(d) the steps taken by the Government in this regard;
(e) whether the Bharat Sanchar Nigam Limited has introduced the said plan in some States of the country; and
(f) if so, the time by which this plan is likely to be introduced in all States?