Lok Sabha Question No. 5335 (UNSTARRED), answered on 2019-07-25
Subject: Floods in Koshi and Gandak Rivers
Ministry: JAL SHAKTI
Asked by: Mahabali Singh

## GOVERNMENT OF INDIA MINISTRY OF JAL SHAKTI,

## DEPARTMENT OF WATER RESOURCES, RIVER DEVELOPMENT & GANGA REJUVENATION LOK SABHA UNSTARRED QUESTION NO. †5335

ANSWERED ON 25 .0 7.2019

## FLOODS IN KOSHI AND GANDAK RIVERS

## †5335. SHRI MAHABALI SINGH

Will the Minister of JAL SHAKTI be pleased to state:

(a) whether disastrous floods occur every year in Koshi and Gandak rivers due to heavy r water catchment area of Nepal and if so, the details thereof;

(b) whether many districts of North Bihar become inundated and lakhs of people become homeless a there is huge loss of life and property due to the floods, if so, the details thereof

(c) whether the discussion between the Union Government and the Government of Nepal to pr disast rous floods have yielded any conclusive results; and

(d) if so, the details thereof?

## ANSWER

## THE MINISTER OF STATE FOR JAL SHAKTI & SOCIAL JUSTICE AND EMPOWERMENT

## (SHRI RATTAN LAL KATARIA )

(a) & (b) Yes, the State of Bihar  is affected due to floods every year in Koshi and Gandak rivers due heavy rainfall in the catchment area in Nepal. As informed by Water Resource Department, Government of Bihar, the maximum river discharge observed in rivers Kosi and Gandak during the last during flood are at Annexure I. Central Water Commission compiles the details of annual damage du the floods as supplied by the State Governments. These data are available from year 1953 o average damages for State of Bihar for the period fro m 1953 to 2017 are at Annexure II.

(c) & (d) Currently, the Flood Forecasting & Early Warning System of rivers flowing from Nepal to In is in place. Government of India is having continuous dialogue with the Government of Nepa levels  to  mitigate  devastation  caused  by  the  flood  havoc  from  the  rivers  coming  from  Ne rough various  storage  dams  like  Saptakosi - Sun  Kosi  etc.,  contemplated  jointly  by  both  the  Governme Government  of  India  has  been  regularly  taking  up  this  matter  with  the  Government  of  Nep various bilateral mechanisms in the sector of water res ources such as the Joint Committee on Inundati and Flood Management as well as the Joint Committee on Kosi and Gandak Projects. Governme been cooperating continuously with the Government of Nepal in the areas of flood forecastin meteorol ogical data sharing.

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## ANNEXURE  REFERRED  TO  IN  REPLY  TO  PART S (a)  &  (b)  OF  UNSTARRED  QUESTION NO. †5335 TO BE ANSWERED IN LOK SABHA ON 25.07.2019 REGARDING ' FLOODS IN KOSHI AND GANDAK RIVERS' .

Maximum river discharge observed in rivers Kosi and Gandak during the last three years during floo

| S. No.   | Location                          | Year-Wise occurrence of Maximum Discharge in cusecs   | Year-Wise occurrence of Maximum Discharge in cusecs   | Year-Wise occurrence of Maximum Discharge in cusecs   |
|----------|-----------------------------------|-------------------------------------------------------|-------------------------------------------------------|-------------------------------------------------------|
|          |                                   | 2017                                                  | 2018                                                  | 2019                                                  |
| 1.       | Kosi River Birpur Barrage         | 283785 (on 12.08.2017)                                | 274790 (on 15.08.2018)                                | 371110 ( on 13.07.2019)                               |
| 2.       | Gandak River Valmikinagar Barrage | 524500 (on 13. 08.2017)                               | 189000 (on 6 &15 08.2018)                             | 194800 (on 13.07.2019)                                |

ANNEXURE REFERRED TO IN REPLY TO PART S (a) & (b) OF UNSTARRED QUESTION NO. † 5335  TO  BE  ANSWERED IN  LOK  SABHA  ON  25.07.2019  REGARDING  ' FLOODS  IN KOSHI AND GANDAK RIVERS '.

| Statement showing the average damages due to floods in Bihar, Uttar Pradesh and West Bengal during the period   | Statement showing the average damages due to floods in Bihar, Uttar Pradesh and West Bengal during the period   | Statement showing the average damages due to floods in Bihar, Uttar Pradesh and West Bengal during the period   | Statement showing the average damages due to floods in Bihar, Uttar Pradesh and West Bengal during the period   | Statement showing the average damages due to floods in Bihar, Uttar Pradesh and West Bengal during the period   | Statement showing the average damages due to floods in Bihar, Uttar Pradesh and West Bengal during the period   | Statement showing the average damages due to floods in Bihar, Uttar Pradesh and West Bengal during the period   | Statement showing the average damages due to floods in Bihar, Uttar Pradesh and West Bengal during the period   | Statement showing the average damages due to floods in Bihar, Uttar Pradesh and West Bengal during the period   | Statement showing the average damages due to floods in Bihar, Uttar Pradesh and West Bengal during the period   | Statement showing the average damages due to floods in Bihar, Uttar Pradesh and West Bengal during the period   | Statement showing the average damages due to floods in Bihar, Uttar Pradesh and West Bengal during the period   |
|-----------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------|
| Sl.                                                                                                             | Name of State                                                                                                   | Area affected in Mha                                                                                            | Population affected in                                                                                          | Damage to Crops                                                                                                 | Damage to Crops                                                                                                 | Damage to Houses                                                                                                | Damage to Houses                                                                                                | Cattle lost                                                                                                     | Huma - n Lives Lost Nos.                                                                                        | Damage to Public Utilities                                                                                      | Total damages Crops,                                                                                            |
| N                                                                                                               |                                                                                                                 |                                                                                                                 | million                                                                                                         | Area in                                                                                                         | Value Rs.                                                                                                       | Numbers                                                                                                         | Value in Rs.                                                                                                    | Nos.                                                                                                            |                                                                                                                 |                                                                                                                 | Houses and Public Damages in Rs.Crore                                                                           |
|                                                                                                                 |                                                                                                                 |                                                                                                                 |                                                                                                                 | Mha                                                                                                             | Crore                                                                                                           |                                                                                                                 |                                                                                                                 |                                                                                                                 |                                                                                                                 |                                                                                                                 |                                                                                                                 |
|                                                                                                                 |                                                                                                                 |                                                                                                                 |                                                                                                                 |                                                                                                                 |                                                                                                                 |                                                                                                                 | Crores                                                                                                          |                                                                                                                 |                                                                                                                 |                                                                                                                 |                                                                                                                 |
| 1                                                                                                               |                                                                                                                 | 3                                                                                                               | 4                                                                                                               | 5                                                                                                               | 6                                                                                                               |                                                                                                                 |                                                                                                                 | 9                                                                                                               | 10                                                                                                              | 11                                                                                                              |                                                                                                                 |
|                                                                                                                 | 2                                                                                                               |                                                                                                                 |                                                                                                                 |                                                                                                                 |                                                                                                                 | 7                                                                                                               | 8                                                                                                               |                                                                                                                 |                                                                                                                 |                                                                                                                 | 12                                                                                                              |
| 1                                                                                                               | BIHAR                                                                                                           | 4.26                                                                                                            | 29.985                                                                                                          | 2.24                                                                                                            | 768.38                                                                                                          | 1398484                                                                                                         | 831.45                                                                                                          | 10105                                                                                                           | 1287                                                                                                            | 1035.16                                                                                                         | 2310.65                                                                                                         |

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