To prevent question leaks from marring the Higher Secondary Certificate (HSC) examinations, Bangladesh Bank orders for a close watch on mobile financial transactions.

A large number of subscribers of Airtel in Dhaka and 10 other districts faced network disruption for around 20 hours from 8:53pm Tuesday because of a technical glitch at its switches.

In such healthy, competitive market of specialised services, the provision of entry of mobile operators and strong interest of majority shareholders of the dominant mobile operator raise serious concerns.