Sambalpur Police arrested four suspected Maoists, including a hardcore armed cadre Ranbir Jharna alias Mangal from Budharaja area of the town on Monday. The other three have been identified as Basant Herenj (51), Durga Topno (25), both of Jarang village under Jujumura police limits, and Mangalu Munda (55) of Dehripali in Budharaja area, originally from