The parties' request to the EC came as Congress today nominated its Punjab unit chief Sunil Jakhar as the party candidate for the Gurdaspur Lok Sabha by-poll to be held on October 11.
The bypoll was necessitated due to the demise of BJP lawmaker Vinod Khanna in April.
Punjab BJP chief Vijap Sampla and other leaders from the two parties informed the EC of the "mala fide" intentions of the ruling Congress party to win the seat, a statement by the SAD said.
Accoding to the statement, the leaders urged the EC to transfet the senior police officers posted in Gurdaspur district.