"The upper limit is Rs 12 lakh and the lowest is Rs 30,000," Inspector General of Police S N Pradhan told PTI.
Those having details of Maoist whereabouts could make a call on the numbers of senior police officers given on the police department's website, he said.
Out of 150 hardcore Maoists, a list of 111 ultras, including 30 from other states who have indulged in violence in Jharkhand, has been released by police headquarters, he said.
In the last one year, Jharkhand police has been successful in convincing many ultras to accept the government's surrender policy and has nabbed several important Maoist leaders, he added.