He promptly apologized and rescinded the boycott call in a new e-mail message, "I did a wrong thing that needs to be cleared up."
Other opposition parties looked for a low turnout among the country's 13 million eligible voters as an indication of support for their boycott call.
Despite the boycott call given by the separatists 50,000 school children participated in this competition.
Despite their boycott call, Hamas spokesmen made it clear on Sunday that they would work with an elected president.
Canada had already said it would heed the boycott call.
Hence Rachel's is now the subject of a boycott call by baby milk action.
Hamas said its boycott call was directed to its supporters, not all Palestinian voters.
But conservation groups stepped up their boycott call, running large advertisements over the last two weeks in major newspapers around the country.
However, she said, with around 150 motions from the union's 1,500 branches to debate, it was not clear whether the boycott call would be discussed.
This followed a naxal boycott call in several districts.