Guwahati, Apr 6 : Prime Minister Manmohan Singh is scheduled to attend an election rally at Dibrugarh on Tuesday.

An Assam Pradesh Congress Committee spokesman informed that Singh will arrive in the town at 11.30 a. m. to campaign for the party candidate, former Union Minister Paban Singh Ghatowar.

The constituency is going to polls in the second phase of election on April 23.

Singh, who was earlier scheduled to address an election rally at Diphu in Karbi Anglong on Tuesday, postponed his visit due to security reasons.

The decision to postpone the visit came after militant outfit, Karbi Longri N. C. Hills Liberation Front (KLNLF) called for a 36-hour shut-down in the twin hill districts of Karbi Anglong and North Cachar from Monday evening.

The KLNLF, which has been waging an armed battle for "self determination" of the Karbi people, has called for the shut-down in protest of the government''s negative response towards the outfit''s desire to hold talks.

Another date for Diphu visit would be set up later.

The two districts NC Hills and Karbi Anglong, which constitute the Autonomous District parliamentary constituency, will go to polls in the first phase on April 16. (ANI)