"We will dash 1,008 coconuts on November 8 to bless her ahead of the US election. We expect her to win the election," MK Shivajilingam, a Tamil National Alliance (TNA) member of the Tamil controlled northern provincial council said.
The event will take place in Jaffna's historic Kandsamy Kovil in Nallur. There will also be lighting of 1,008 candles at the Jaffna Cathedral, he said.
The Obama administration has extended its support to the reconciliation efforts promised by President Maithripala Sirisena to Tamils.
Sirisena, who came to power last year after ending former strongman Mahinda Rajapaksa's nearly a decade-long rule, had promised to reach out to the Tamils to pursue reconciliation more vigorously than Rajapaksa, who was known for his hardline Sinhalese nationalism.
Last month, a UN rights expert asked the Lankan government to return military-occupied land and reduce the role of the army in northern areas, a long-pending demand of the ethnic Tamils since the end of the nearly three-decade-long separatist war led by the LTTE in 2009 in which thousands of civilians were killed.