(a) whether IOC has introduced `Tank Truck Security System` in some of the cities to check adulteration and pilferage of petroleum products during transit;
(b) if so, the details of the system;
(c) whether other Public Sector oil companies have also been directed to introduce similar system in the country;
(d) if so, the details thereof; and
(e) the extent to which the new system introduced by IOC would ensure supply of fuel to consumers free from any adulteration?