Which of the following is the oldest atomic power station?

Tarapur is the oldest atomic power station. Tarapur Atomic Power Station (T.A.P.S.) was the first nuclear power plant in India. The construction of the plant was started in 1962 and the plant went operational in 1969. The 320 MW Tarapur nuclear power station housed two 160 MW boiling water reactors (BWRs), the first in Asia.