
1. On 29-10-1886 a lease indenture for 999 years was made between Maharaja of Travancore and Secretary of State for India for Periyar irrigation works by another agreement in 1970, Tamil Nadu was permitted to generate power also.
2. The Mullaperiyar Dam was constructed during 1887-1895 across Periyar River in the then Travancore state (now Kerala) territory after said indenture. The Periyar Dam with full reservoir level of 152 ft. provides for diversion of water from the reservoir through a tunnel to Vaigai basin in Tamil...