Lahore, Nov 26 -Pakistani Muslims threatened protests and anarchy if the government pardons a Christian mother sentenced to death for blasphemy, calling hundreds of demonstrators onto the streets today.

Demonstrators marched in the eastern city of Lahore after the most influential Sunni Muslim alliance in Pakistan urged the government not to grant mother-of-five Aasia Bibi clemency.

A crowd of several hundred called for "Jihad" and pledged to sacrifice their lives to protect the honour of the Prophet Mohammad, an AFP reporter said.

The rally was organised by a subsidiary of banned charity Jamaat-ud-Dawa (JuD), which the United Nations has blacklisted as a terrorist organisation.

"We will hold nationwide protests if the government pardons the Christian woman," the subsidiary's chief coordinator, Qari Yaqub, told participants.