Guwahati, April 17: A foolproof security plan is being worked out by the state police, ahead of the daylong visit of Prime Minister Manmohan Singh to the city on Sunday.

A day after the first phase of polling in three Assam constituencies ended on a by-and-large peaceful note barring the odd incident in Karbi Anglong, the men in khaki are leaving no stone unturned to make the Prime Minister’s second electioneering venture a success.

Singh’s first campaign to the state was aborted after rain and security concerns played spoilsport with his itinerary at Diphu and Dibrugarh. The rally in the Upper Assam town had to be put off after persistent rain prevented the Prime Minister from taking a chopper from Mohanbari airport to the venue at Chowkidingee field — a distance of 15km — and security concerns stood in the way of his taking the road.

Assam PCC sources today said all efforts would be made this time to ensure that the Prime Minister’s programme at Amingaon near here is not cancelled.

Police officials said there would be extra vigil in and around the city to thwart any attempt by militants to strike.

Ulfa had struck at several places on April 6, a day before the Prime Minister’s visit to Dibrugarh and earlier when external affairs minister Pranab Mukherjee was in the state capital on March 31.

“The prime ministerial visit will also provide an opportunity for us to gauge what Ulfa has in mind for the elections. If it strikes then we would know what its intentions are, although we do already have some reports that the outfit might disrupt the elections,” a senior official said.

Chief minister Tarun Gogoi, on the other hand, expressed optimism that the peaceful polling trend witnessed yesterday in the three parliamentary constituencies of the state would continue in the second phase of polling in the remaining 11 seats.

Speaking to reporters at Rajiv Bhawan last night, Gogoi said he had always believed that the elections in the troubled autonomous districts would not be as gory as it had been feared. “A peaceful election there has only vindicated my belief,” Gogoi said.