All Banking Sectors endeavor to attain 100% customer satisfaction for business growth as all satisfied customers shall become the constructive promoters for their bank. Also, the purpose of restructuring in modern banking sector through each technological revolution is to deliver maximum customer satisfaction and monetary worth to the customer. Now in India, banking businesses are dependent on financial adeptness companies to reach its products and services to maximum customers. This study hunted to depict the views of the customers of commercial banks on the impact of financial adroitness in their day-to-day transaction and changes in customer preferences. The purpose of this research is to find out customer satisfaction in commercial banks, particularly in Chennai district Commercial banks. Information collected through a questionnaire from 650 customers of commercial banks in Chennai district. Data analysis has been conducted using Microsoft Excel. The study showed that the customers experience higher satisfaction, with good customer service and promise, along with the behavior of staff with customers which have a key factors influence on customer satisfaction.