Tilyar Lake was originally created as a reservoir to provide irrigation water to the surrounding agricultural lands. Over time, its potential as a recreational spot was recognized, and it was developed into a tourist attraction. Haryana Tourism played a significant role in transforming the area into a well-maintained complex with boating facilities, a zoo, and other amenities. The lake has since become an integral part of Rohtak's identity, offering a peaceful retreat and contributing to the region's tourism sector. While specific historical events directly linked to the lake are limited, its evolution from a functional reservoir to a popular leisure destination reflects the changing needs and priorities of the region.