Guwahati: Protesting against the proposed visit of Prime Minister Dr Manmohan Singh, the anti-talk faction of the banned ULFA on Tuesday called for an "Assam Bandh" on April 20.

"The ULFA has called for a day long bandh to protest against the Prime Minister's visit on April 20", an e-mail sent by the outfit to the local media said here.

The Prime Minister is scheduled to inaugurate the platinum jubilee celebration of the state assembly on that day.

Earlier, the event was scheduled to be held on April seven which was the outfit's "raising day" but subsequently the Prime Minister's visit was cancelled.

"The ULFA will oppose the visit as many cadres have been eliminated by the Indian security forces in the past", the mail said.