Guwahati, Apr 22 : Authorities in Guwahati have beefed up security at a school where Prime Minister Dr. Manmohan Singh is expected to cast his vote in the second phase of Lok Sabha polls.

Singh along with his wife Gursharan Kaur are expected to cast their votes on Thursday.

Police officials said ordinary voters would not be put to trouble by the extra security for the Prime Minister.

"Normal checking will be carried out on PM''s arrival. The rest of the voters can also come here and vote. Normal arrangements will be put in place. No inconvenience will be caused to any voter. But every body will be checked," said G P Singh, Inspector General of Police.

Students at the school said they were excited about the Prime Minister''s visit.

"We are very happy that the Prime Minister is coming here. We hope the voting goes on smoothly and everything has been cleaned here for the PM''s visit," said Parag Sharma, a student.

Singh is officially a voter from Guwahati.

A powerful bomb blast in a crowded parking area killed four people in Guwahati in the first week of April, ahead of Singh''s visit to the state.

Police suspected that the United Liberation Front of Asom (ULFA) was behind the blast. (ANI)