Haiderpur is a floodplain wetland of River Ganga located near the Bijnor Barrage between 29⁰25’25” N latitude and 78⁰00’59” E longitude falling in Muzaffarnagar and Bijnor Districts of Uttar Pradesh. Towards the east of the wetland is the River Ganga, to the west is Nizampur and Haiderpur Reserved Forest and Bijnor Barrage on the south of the wetland. With an area of 6,098 ha, this wetland came into existence in 1984 after the construction of Madhya Ganga Barrage on River Ganga, about 10 km west of Bijnor city and is located within the boundaries of Hastinapur Wildlife Sanctuary. This freshwater human-made wetland receives backwater flow from River Ganga during the monsoon and retains water till the end of February. It comprises varied deep upstream reservoir, shallow flooded land and stretches of river (River Ganga and Solani). This diverse aquatic habitat thrives with life forms and provides a significant abode specially for the migratory waterbirds. Important of which include more than 300 species of birds. Also, species such as leopard, wild cat, wild boar, spotted deer, python, cobra and mugger are found in the fringes and the catchment areas of the wetland. This productive wetland is not only significant ecologically but also support the local communities which depend on the wetland for fisheries and livelihood options like water chestnut cultivation.

A wetland should be considered internationally important if it contains a representative, rare, or unique example of a natural or near-natural wetland type found within the appropriate biogeographic region.

A wetland should be considered internationally important if it supports vulnerable, endangered, or critically endangered species or threatened ecological communities.

A wetland should be considered internationally important if it supports populations of plant and/or animal species important for maintaining the biological diversity of a particular biogeographic region.

A wetland should be considered internationally important if it supports plant and/or animal species at a critical stage in their life cycles, or provides refuge during adverse conditions.

A wetland should be considered internationally important if it regularly supports 20,000 or more waterbirds.

A wetland should be considered internationally important if it regularly supports 1% of the individuals in a population of one species or subspecies of waterbird.

A wetland should be considered internationally important if it supports a significant proportion of indigenous fish subspecies, species or families, life-history stages, species interactions and/or populations that are representative of wetland benefits and/or values and thereby contributes to global biological diversity.

A wetland should be considered internationally important if it is an important source of food for fishes, spawning ground, nursery and/or migration path on which fish stocks, either within the wetland or elsewhere, depend.

A wetland should be considered internationally important if it regularly supports 1% of the individuals in a population of one species or subspecies of wetland-dependent nonavian animal species.