The main aim of the study is to find the relationship between demographic factors of bank employees and their investment pattern, the purpose of savings of bank employees and the level of satisfaction on returns of investments. The study was conducted by collecting data both from primary and secondary sources. The secondary data were collected from different journals, books, some selected research thesis, RBI websites and websites. The primary data were collected using questionnaire through a survey. The present study was administered to the employees of public sector and private sector banks in Tirunelveli district. Convenience sampling method was adopted whereby 200 questionnaires were distributed to the employees of the branches of these banks in Tirunelveli district. Out of 200, one hundred questionnaires could be collected. Out of which, 52 questionnaires from public sector bank (Indian Overseas Bank, State Bank of India & Indian Bank) employees and 48 questionnaires from private sector bank (Axis Bank, HDFC & ICICI Bank) employees were found to be valid. Hence, the total sample size of the study is 100 employees constituting 52 and 48 from public and private sector bank respectively. Therefore, employees of the banks are the sampling unit and the 100 bank employees are the sampling size of the study. It is found that the important investment among the male respondents are bank deposit and land and the important investment among the female respondents are bank deposit and post office savings. Gender wises there is a significant difference in the investment pattern are identified in the case of post office savings, debenture and land.