Software engineering directly or indirectly has become an important factor in the social aspects of day to day life. The software systems have turned out to be an integral part of business environment. The practice is much followed from online marketing to real time monitoring. One thing that can take the software system to its success is requirements. Requirements take special role in software development process and thus are always taken care of at the time of sudden changes and fixes. The researchers highlight the concept of sustainability towards software engineering as the practices spread over the large socio-economic systems. It is important to understand how software systems have grown in today's society making people partially or fully dependent on it. Simultaneously it is important to show concerns regarding the resource usage and sustaining them for near future. This can be achieved if necessary changes are introduced to the software practices making software engineering to include sustainability. The aim is to integrate the concept through requirements as they are the building blocks of any software system and if stepped wrong may lead to fatal results.