In a video message issued today, Mehsud said the Taliban want the enforcement of Shariah or Islamic law in Pakistan.
Geo News channel quoted Mehsud as saying that he does not favour democracy.
The Taliban chief claimed that "kafirs" want to divide Muslims in the name of democracy.
The Taliban want an Islamic nation and "Allah's system" in Pakistan, he said.
He further claimed that the Pakistan government and the US were hatching conspiracies to make Muslims fight among themselves.
The banned Tehrik-e-Taliban Pakistan had earlier warned that its fighters would target the election rallies of the Pakistan People's Party, Awami National Party and Muttahida Qaumi Movement.
The Taliban has carried out several attacks targeting the ANP and its leaders.
Pakistan will go to the polls on May 11 to choose new national and provincial assemblies, marking the first democratic transition in the country's 66-year history.
