Admiration of quality management as an important factor holds the key to competitiveness in the worldwide market. Due to cut throat competition industries strive for better performance, which in turn generates more profit. Total Quality Management (TQM) is primarily found in manufacturing organizations to improve quality performance. A diagnostic research instrument has been designed to study the companies that have implemented TQM and mathematical models are developed from field data. The comparison of values of dependent term obtained from field data and the mathematical models shows that the mathematical models can be successfully used for the computation of dependent terms for a given set of independent terms. Indian industries can use TQM implementation factors to obtain detailed understanding of existing quality management practices and link them with quality performance measures. This paper presents an approximate generalized field data based model of relationship between TQM practice and quality performance in Indian context.