Humans are widely believed to be insatiable beings who actively engage in determining their wants and making intelligent purchasing decisions to meet those requirements. Since the 'Trade Concept Era' (Pre-Industrial revolution), individuals have been observed making intelligent purchasing decisions, but in the current 'Digitization Era,' it has been observed that people's shopping behavior has changed from routine purchases to sustainable purchases. A notion known as sustainable purchasing behavior refers to choosing things that are socially, economically, and environmentally responsible. In other words, it is the study of consumer behavior with regard to the justification for buying a product as well as the usage and disposal of that thing. The purpose of the current study is to better understand the variables that affect consumers' sustainable purchasing behaviors. It will also try to find if demographic factors such as age, gender and income have any correlation with the purchase decision towards sustainable products and will further explore how consumers' feelings of spirituality affect their choice to buy green products rather than conventional ones. With the help of literature reviews, the researchers tried to identify the variables influencing sustainable buying behavior or purchase behavior towards sustainable products. Primary data has been collected with the help of a well-structured questionnaire and collected data has been analyzed with the help of SPSS to fulfill the objectives of the study.