| Year | Population in lakhs | Water demand in MLD | Present supply in MLD | Shortfall in demand | |
| MLD | TMC | ||||
| 2011 | 84.99 | 1683 | 900 | 723 | 9.33 |
| 2021 | 105.81 | 2095 | 1460 | 635 | 8.19 |
| 2031 | 142.96 | 2831 | 1460 | 1371 | 17.69 |
| 2041 | 170.85 | 3383 | 1460 | 1923 | 24.81 |
| 2051 | 205.61 | 4071 | 1460 | 2611 | 33.69 |