The offensive, which would also be carried out at night, has been launched to prevent Maoists from entering Jharkhand particularly through the border of Palamau and Garhwa districts, CRPF s 34 battalion Commandant Anil Minz told reporters.
The CRPF would be assisted by the police in the operation, he said.
On Friday, a CRPF man was injured in an encounter with the Left-wing guerrillas at Tal village.