It is believed that Sri Ram fought his very first battle here. It is said that his persona of a brave warrior came from this event. It is also known as Tadaka Van. As per references of the Ramayana, Tadaka had lived in this forest and she had almost covered the area of about one-and-a-half Yojans. It is believed that this is the place where Sri Ram killed Tadaka, and it is located in Buxar.
(Ref: Valmiki Ramayana 1/24/12 to 32, 1/25-26 whole chapter Manas 1/208/3, 1/205 doha to 1/208/2).