The public rally had to be cancelled owing to the funeral of Maithripala's mother-in-law which took place at nearby Weliweriya.
Following the discovery of the explosives it has been decided to increase Maithripala's security.
The two claymore mines were found by police on a tip off by a member of the public who takes his cows to the cemetery area to graze.
The bombs were defused by the Bomb Disposal Squad.