Kolkata, June 9 : The Congress and BJP have decided to move the Calcutta High Court on various issues relating to forthcoming polls in the three-tier panchayat system in West Bengal.

The newly appointed state election commissioner, Rajiva Sinha, on Thursday evening announced July 8 as the date of polls in a single phase.

As Sinha remained vague on the deployment of central armed forces for the polls and instead asked people to have faith in the security arrangements made by the state police, state Congress president and veteran party Lok Sabha member Adhir Ranjan Chowdhury announced that the party will move to the court to demand the deployment of central forces.

Congress leader and counsel of the Calcutta High Court, Kaustav Bagchi will file a petition at the high court on Friday only. "We have a total of 12 demands for the forthcoming panchayat polls that include central forces deployment, arrangement for online nomination and option for filing nomination at the offices of state election commission and the district magistrates," Bagchi said.

Besides Congress, the state unit of BJP in West Bengal has also decided to move the Calcutta High Court on various grounds. Besides the demand for deployment of central forces, the saffron camp will object to organising the polls in a single phase on July 8. It is learnt that in its petition, the party will also object to the state election commissioner's announcement of the nomination, polling and counting days for the panchayat elections without convening an all- party meeting.