The Bihar Aapda Punarwas Evam Punarnirman Society (BAPEPS) is a society registered under the Societies Registration Act, 1860 formed with the objective of rehabilitation and reconstruction of disaster affected areas and bringing convergence between all agencies working in this field.

The Bihar Aapda Punarwas Evam Punarnirman Society (BAPEPS) has been given the mandate to implement the US $ 259 million World Bank assisted Bihar Kosi Flood Recovery Project (BKFRP) in Kosi flood affected area.

BAPEPS is the designated primary entity responsible for planning, co-ordination, implementation and monitoring of the project, other than the Livelihood component which will be implemented by the Bihar Rural Livelihood Promotion Society (BRLPS).

The Kosi River rises in China and drains the Everest massif, flowing off the Himalayas, across the Nepal plains into India to flow across Bihar. On August 18, 2008, the Kosi River burst through its eastern embankment 11 km upstream of the Kosi Barrage in Nepal, 8 km north of the Indian border. This created major flooding in Nepal and Bihar with about 3.3 million people affected in Bihar alone.