Clustering is an efficient method for analyzing unsupervised text. Generally content may be explored with large amount of sentences and various clustering techniques are discussed. Clustering is a method for grouping of object set those may be similar or related to them. The main thing in this clustering is similarity or correspondent meaning of particular term. Text processing is based on the sentence clustering which reduces the complexities in data mining. The structural summaries are analyzed and are helpful for characterizing among the information content of the data, and eventually in the database design.