All the activities of an organization revolve over customer satisfaction. Customer satisfaction remained the ultimate objective to realize success in the market. Customer satisfaction is realized from the values of a firm through customer relationship management processes. There seems to be impactful relationship between quality control and customer relationship management. Quality assurance and control is the activity of providing the evidence needed to establish confidence among all concerned, that the quality related activities are being performed effectively. Many quality assurance and control activities provide protection against quality problems through early warnings of troubles ahead. It establishes system of policies, procedures and guidelines that establishes and maintains specified standards of product quality. One of the crucial determent in successful implementation of TQM is Quality assurance. MSMEs play critical role in the economic development of a country. Quality management of these MSMEs is would be critical for their stability. The aim of the paper is to examine the level of Quality assurance against customer relationship at MSMEs of Ballari, Karnataka. The universe comprised executive and non executive workforce of the firm. Sampling was carried out using convenient sampling technique with sample size of 50 in line with the Cochran formula. Data was collected using observation and informal interview methods. Descriptive statistics and Chi-square test was used to analyse the data. The research envisaged that all the factors of Quality assurance are associated with customer relationship at the MSMEs. The study revealed that, job instruction manual and quality manual at the MSMEs has significant influence on customer relationship.