Haryana government has carried out a number of development works at Sultanpur Bird Sanctuary like construction of mounds, widening of paths, and digging four tube wells.

Sultanpur has the typical North Indian climate of harsh summers (above 45 C) and cold winters (below 0 C. The rainy season is short, from July to the end of August.

Sultanpur was the center of salt production for use in Delhi and the United Provinces of British India till the late 19th century exporting annually 250000 quintals (680000 maunds) over the Rajputana-Malwa Railway.

[4] Sultanpur had an ancient mosque dating back to the period of Sultan of Delhi, Ghiyas ud din Balban (1200–1287 CE).

Two slabs of red sandstone bearing Arabic inscriptions taken from this mosque are fixed on the southern wall of the Jama Masjid at Farrukhnagar.

She had to cancel at the last minute, but later instructed then Chief Minister of Haryana, Bansi Lal, to protect the wetland, as a result the area was declared a Bird sanctuary in 1972.

Earlier before the construction of bandhs and drainage areas around Sultanpur remained waterlogged and attracted a large numbers of migratory birds and hunters, many from the Diplomatic Corps at Delhi.

Resident birds include the common hoopoe, paddyfield pipit, purple sunbird, little cormorant, Indian cormorant, common spoonbill, grey francolin, black francolin, Indian roller, white-throated kingfisher, Indian spot-billed duck, painted stork, black-necked stork, white ibis, black-headed ibis, little egret, great egret, cattle egret, crested lark, red-vented bulbul, rose-ringed parakeet, red-wattled lapwing, shikra, Eurasian collared dove, red collared dove, laughing dove, spotted owlet, rock pigeon, magpie robin, greater coucal, weaver bird, bank mynah, common mynah and Asian green bee-eater.

In winter the sanctuary provides is a panorama of migratory birds such as Siberian crane, greater flamingo, ruff, black-winged stilt, Eurasian teal, common greenshank, northern pintail, yellow wagtail, white wagtail, northern shoveller, rosy pelican, spot-billed pelican, gadwall, wood sandpiper, spotted sandpiper, Eurasian wigeon, black-tailed godwit, spotted redshank, starling, bluethroat and long-billed pipit.

The park is a popular picnic spot for residents of New Delhi and the NCR (National Capital Region), especially during the winter migration months when thousands of birds visit here from across the globe.

The Educational Interpretation Center has been built up here to offer appropriate direction to the adventurers visiting the spot and [15] a library, films, slides and binoculars for the benefit of bird lovers.