| 15 Nov. 2012 | Updated Research. |
| 01 Oct. 2012 | Updated About us. |
| 01 Aug. 2012 | Updated Publications 2012, Annual Report of NILIM. |
| 09 Apr. 2012 | Updated About us. |
| 19 Mar. 2012 | Updated Publications 2012. |
| 14 Dec. 2011 | Updated Publications 2011. |
| 01 Dec. 2011. | Updated all web pages for River Environment Division in English. |
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