In Bihar,four hardcore Maoists involved in August 29 Lakhisarai encounter with police were arrested from Surayagarha area in the district today. Sevenpolicemen were killed and four others kidnapped in the attack. Police said,they were arrested in course of search operations in the forest and hills under Kajra police station in the district.Later,the Local Court has remanded them to judicial custody for 14 days.