The former militants were engaged in anti-government activities in Khogiani, Chaparhar, Haska Mina and Lalpor districts over the past couple of years, the official said, adding their surrender would help security forces to further stabilize security in the area.
Taliban militants have yet to make a comment.
More than 1,000 militants affiliated with the hardliner ISIS terrorist group and nearly 200 Taliban fighters, according to the official, have given up fighting and surrendered to security forces in Nangarhar province over the past several months.