Raipur, July 13 - A day after Maoists struck in Chhattisgarh thrice and killed at least 29 policemen including a district police chief, the state which has been battling Maoist militancy since the 1980s, was put on high alert Monday.

Police forces were asked to be vigilant and cautious while rushing to forested areas for patrolling, as police have received fresh inputs that the banned terror outfit, Communist Party of India-Maoist's (CPI-Maoist) military wing, People's Liberation Guerrilla Army (PLGA) fighters are itching for more deadly attacks.

'They are striking now as per their will and we have lost an SP (superientendent of police) rank officer in a Maoist attack for the first time,' a senior official at the state police headquarters here told IANS.

He added: 'If the intelligence inputs coming in from western and southern regions of the state are to be believed, the police are going to be under more attacks.'

Police claim that it was PLGA cadres that carried out meticulously planned attacks three times Sunday, right from morning to evening, in the state's remote western pockets in Rajnandgaon district, bordering Maharashtra, that left a minimum of 29 cops dead and about two dozen injured.