The dam is part of the Kodiyar Irrigation System, as its stored waters are utilized only through a combined canal system which provides irrigation to a total command area of 36,836 ha (91,020 acres).
The irrigation system consists of four dams and associated storage reservoirs, anicuts, and canal system.
The first project to be implemented under this system was the Pechiparai dam, built during 1948-53; the Kodiyar Left Bank Canal (KLBC) taking off from this dam feeds the Puthen dam, which is a weir that was remodeled under World Bank assistance during the 2000s.
The next two dams to be built were the Chittar dam I and Chittar dam II in the period from 1964-1970; the storage waters of these two reservoirs were also fed into the KLBC.
The storage from the Perunchani reservoir is also fed into the Puthen weir.

During the period 1964-70 the storage capacity of the  Pachipprai and Parunchani dams was increased by raising the full reservoir level by 1.83 m (6 ft 0 in); this involved rising, strengthening, and improvement measures.
The KLBC, which was originally designed to carry a discharge of 24.07 m³ (850 cu ft) per second, was remodeled in 1965 to carry a discharge of 32.99 m³ (1,165 cu ft) per second.
There is a small branch canal taking off from the KLBC, before it joins the Puthen weir, which has an irrigation command of 6,073 ha (15,010 acres).
The interlinking of the Perunchani and Chittar dams provides an additional irrigation potential of 15,000 acres (6,100 ha) in the system.
The dam is part of the Kodiyar Irrigation System, as its stored waters are utilized only through a combined canal system which provides irrigation to a total command area of 36,836 ha (91,020 acres). The irrigation system consists of four dams and associated storage reservoirs, anicuts, and canal system. The first project to be implemented under this system was the Pechiparai dam, built during 1948-53; the Kodiyar Left Bank Canal (KLBC) taking off from this dam feeds the Puthen dam, which is a weir that was remodeled under World Bank assistance during the 2000s. The next two dams to be built were the Chittar dam I and Chittar dam II in the period from 1964-1970; the storage waters of these two reservoirs were also fed into the KLBC. The storage from the Perunchani reservoir is also fed into the Puthen weir.
During the period 1964-70 the storage capacity of the  Pachipprai and Parunchani dams was increased by raising the full reservoir level by 1.83 m (6 ft 0 in); this involved rising, strengthening, and improvement measures. The KLBC, which was originally designed to carry a discharge of 24.07 m³ (850 cu ft) per second, was remodeled in 1965 to carry a discharge of 32.99 m³ (1,165 cu ft) per second. There is a small branch canal taking off from the KLBC, before it joins the Puthen weir, which has an irrigation command of 6,073 ha (15,010 acres). The interlinking of the Perunchani and Chittar dams provides an additional irrigation potential of 15,000 acres (6,100 ha) in the system.
Perunchani Dam