Stage-I (3 Units)
| Event | Year |
|---|---|
| Approval by Planning Commission | August 1975 |
| Comencement of Work | 1976 |
| Completion of Work | 1990 |
Stage-II (4th Unit)
| Event | Year |
|---|---|
| Approval by Planning Commission | 1987 |
| Completion of Work | 1995 |
Date of Commissioning
| Unit | Commissioning Year |
|---|---|
| Unit 1 | 15.03.1988 |
| Unit 2 | 14.04.1988 |
| Unit 3 | 10.02.1990 |
| Unit 4 | 12.01.1993 |