New Delhi, April 17 -- Delhi Assembly Speaker Vijender Gupta's security cover has been upgraded to "Z Category" following an alleged security breach in the Assembly and multiple bomb threats over the past few weeks, officials said Thursday.

As part of the Z Category detail, Gupta will receive 24x7 protection from a specialised team, including a dedicated escort car accompanying his convoy at all times. The security detail is led by a dedicated in-charge and supported by elite commandos for constant surveillance during official movements and public appearances.

Z Category - the third highest security classification - typically involves 35 to 40 security personnel, including armed commandos, protecting the protectee in three shifts.

Secu...