The spot where the bomb was found is about 15 km away from Ukhrul town in Ukhrul district.
Chief Minister Nongthombam Biren Singh was scheduled to visit Ukhrul town on Tuesday to meet leaders of social organisations there, the police said.
The police also said that a team of 27 Assam Rifles personnel recovered the IED around 10 am.
The IED was wrapped in a polythene bag at a culvert along the CM's scheduled route.
An Assam Rifles bomb squad later defused it, an Assam Rifles PRO said.