An official told IANS that at least 5,000 delegates from all over the country will take part in the three-day congress which will be held for the first time in the state.
He said: "I have instructed all officials and contractors to speed up the construction works. Nothing should go wrong and everything should be ready at least one day ahead.
"Out of 5,000 delegates, there are 2,000 scientists," he said.
Police in and around Imphal city have been carrying out raids and search operations everyday.
Certain villages and residential areas are cordoned off shortly after midnight and all people are checked and verified in the morning.
Persons without proper identification documents are singled out for further verifications.
A police officer said that some militants had been picked up from different parts of the state. However, no firearm has been seized.
The police plans to round up the armed insurgents ahead of Modi's visit.
(This story has not been edited by Business Standard staff and is auto-generated from a syndicated feed.)