Four top Maoists, two of them active in Maharashtra state, surrendered before the Andhra Pradesh police in Hyderabad on Tuesday. All the four underground Maoists, including a couple hailing from Adilabad in the state, involved in various offences gave up before the Additional Director General of Police M Ratan, Law and Order.Mr Ratan told reporters that Maddela Adellu, a Maharashtra State Committee member carried a reward of 10 lakh rupees on his head while his wife Kurma Rambai carried a reward of three lakh rupees. Ananda was involved in nine offences including four exchanges of fire, one ambush, two murders and a lorry-burning case in Maharashtra. Two other Maoists who surrendered to police were Killo Raju and Sreendri Subba Rao, both tribals and native of Kannavaram village in Visakhapatnam district.