TF-IDF, term frequency-inverse document frequency, is used to evaluate the relevance of a word to a document in a collection. It is used in information retrieval and text mining field. In this technique, the weight of the word is calculated which signifies the importance of the word in the document. This paper discusses about the approach to determine TF-IDF for documents in Gujarati language, which is a morphologically rich Indo-Aryan language.The approach calculates TF-IDF, based on the method to find the frequency of the words in the document. The system shows significant results, which is discussed in detail.