Barind Tract: Dry Upland of North-West Bangladesh

Stand on the high ground west of Rajshahi in April and the difference from the rest of Bangladesh is physical. The land sits visibly above the floodplain, the soil underfoot is red-brown and hard, and the heat has a dry edge that the delta's steamy lowlands rarely produce. This is the Barind Tract — in Bangla, Varendra Bhumi — the largest Pleistocene physiographic unit in the Bengal Basin and, by common consent of geographers, the driest corner of Bangladesh. For most of its history it was a byword for scarcity: one rain-fed rice crop a year, chronic food deficits and a water table too deep and too stubborn to tap. In the space of four decades, an irrigation programme built around deep tubewells has turned it into one of the country's great rice bowls — and, in the process, raised a hard question about how long the water beneath it can last.

Land above the floodplain

Banglapedia puts the tract's area at about 7,770 square kilometres within Bangladesh — the Soil Resource Development Institute uses a near-identical 7,727 square kilometres — with further sections continuing across the border into West Bengal, bringing wider counts of the whole formation to roughly 10,000 square kilometres. It occupies the north-west of the country, lying roughly between latitudes 24°20′N and 25°35′N and longitudes 88°20′E and 89°30′E. The Karatoya river bounds it to the east, the Mahananda to the west, and the northern bank of the Ganges — the Padma — closes it to the south. Administratively it covers most of the greater Dinajpur, Rangpur, Pabna, Rajshahi, Bogura, Joypurhat and Naogaon districts, including the present-day district of Chapainawabganj.

What defines the Barind is height. Most of Bangladesh is a young floodplain that goes under water every monsoon; the Barind stands above it on two terrace levels, one at about 40 metres above sea level and a second between roughly 20 and 23 metres. Banglapedia classifies about 47 percent of the tract as highland and 41 percent as medium highland. A lower fault scarp runs along the eastern edge, and the valleys of the Little Jamuna, the Atrai and the Lower Punarbhaba occupy fault troughs cut into the terrace. Because the land is elevated, it almost never floods — which sounds like a blessing, and in one sense is. But the same elevation means the rivers largely pass it by, and the rain that falls on it is the only significant source of water the tract has ever had.

An ancient clay

The Barind is a survivor from the last ice age. Where the rest of the delta is built of fresh grey silt laid down by the Ganges, Brahmaputra and Meghna within the last few thousand years, the Barind's surface is made of much older alluvium deposited in the late Pleistocene and then left stranded as the surrounding floodplains subsided and the sea level rose. Its floor is the characteristic sediment known as the Madhupur or Barind Clay — reddish-brown, oxidised, sticky and compact — essentially the same formation that forms the Madhupur Tract near Dhaka. One school of geologists holds the clay was simply deposited and abandoned by ancient rivers; another argues the terraces were pushed up by tectonic movement after deposition. Either way, the result is a landscape of red, iron-rich, relatively infertile upland soils in a country otherwise defined by some of the most fertile silt on earth — and a clay cap that lets rainwater percolate only slowly into the aquifers below.

The tract is also old in human terms. It corresponds closely to Varendra, the historic heartland of early medieval Bengal, and some of the country's most important archaeological landscapes — the great Buddhist monastery of Somapura at Paharpur in Naogaon among them — stand on or beside its terraces. That antiquity, however, long coexisted with agricultural poverty, because everything grown on the Barind depended on a rainfall regime that was never generous and rarely reliable.

The driest corner of Bangladesh

Bangladesh is one of the wettest countries on earth, but the rain is not shared evenly. Banglapedia gives the Barind a long-term average of about 1,971 millimetres a year — and, more importantly, an extreme variability: about 1,738 millimetres fell in 1981, but only about 798 millimetres in 1992. More recent official figures quoted in 2025 put the Rajshahi region's average lower still, at roughly 1,235 millimetres against a nationwide average of about 2,000 millimetres, and a Bangladesh Meteorological Department analysis of data from 1980 to 2023 found rainfall in Rajshahi division declining by about 54 millimetres per decade. The region is formally designated drought-prone, and its temperature range is the country's widest: summer days in the Rajshahi area reach about 45 °C, while winter nights in Dinajpur and Rangpur fall to about 5 °C. The tract's small streams are mostly seasonal, its historic ponds and depressions limited, and for centuries its farmers planted a single crop of rain-fed aman rice and accepted whatever the monsoon decided to give.

The tubewell transformation

The turning point came from an unlikely direction: the ground itself. The Barind had long been written off for groundwater development — the clay was thought too tight and the water too deep. In the early 1980s, engineers of the Bangladesh Agricultural Development Corporation (BADC) working in the region designed a deep tubewell adapted to Barind conditions and demonstrated that the aquifers below the clay could sustain large-scale pumping. In 1985 the government approved the Barind Integrated Area Development Project (BIADP) to put the idea into practice across upazilas of Rajshahi, Chapainawabganj and Naogaon. The project itself was modest — it closed in 1990 having spent only about a quarter of its budget — but it proved the model, and on 15 January 1992 the work was handed to a dedicated body under the Ministry of Agriculture: the Barind Multipurpose Development Authority, or BMDA, headquartered in Rajshahi.

What BMDA built over the following three decades was less a project than a utility. Its engineers sank deep tubewells across the tract and, crucially, distributed the water through buried PVC pipelines to outlets near farmers' fields, eliminating the open channels through which pumped water is usually lost. Water was sold by the hour, first through coupons and later through prepaid smart cards inserted into the pump meters — a system that made farmers conscious of every hour they bought and made the authority, unusually for a public irrigation scheme, able to cover its own operating costs. Alongside irrigation, BMDA took on the rest of the tract's deficits: re-excavating silted ponds and canals, supplying drinking water from its tubewells through overhead tanks, building rural roads and planting trees on a large scale.

The numbers tell the scale of the change. In 2014 BMDA reported 14,620 deep tubewells irrigating about 593,000 hectares; by June 2025 the network had grown to 15,560 deep tubewells and 991 low-lift pumps bringing water to roughly 628,567 hectares, and the state news agency BSS reported in April 2026 that more than 1.5 million families were benefiting from the authority's work. Land that had grown one uncertain crop now grows three: dry-season boro rice underwritten by the tubewells, followed by aus and aman. In Tanore upazila, one of the driest parts of the tract, researchers measuring the change found cropping intensity of about 262 percent — a figure that would have been unimaginable in the single-crop era. The tract that once imported food became a surplus region, routinely described as the rice bowl of the north-west. Parliament recognised the institution's permanence in October 2018, when the BMDA Act gave the authority a statutory basis and expanded its jurisdiction from the original 25 upazilas to all sixteen districts of Rajshahi and Rangpur divisions.

Orchards on the upland

Success brought a second transformation that nobody had planned. As irrigation water grew scarcer and more expensive relative to its returns in rice, farmers across the Barind began converting paddy land to mango orchards, which need far less water once established and earn considerably more. According to the Department of Agricultural Extension, over roughly fifteen years to 2025 the Rajshahi region — Rajshahi, Chapainawabganj, Naogaon and Natore districts together — lost about 200,000 hectares of paddy while its mango orchard area doubled to some 87,307 hectares. Chapainawabganj, long called the country's mango capital, still carried the largest orchard area in 2025–26 at about 37,487 hectares, but the fastest growth was in Naogaon, where orchard area reached about 30,310 hectares and which officials now rank as the country's top mango-producing district; Rajshahi district itself held about 19,062 hectares. The red uplands that once struggled to feed themselves now anchor a seasonal mango economy of harvesting, packing, transport and trade worth thousands of crores of taka each summer.

The groundwater reckoning

The Barind's prosperity, however, is drawn from a reservoir that is measurably shrinking. Because the clay cap admits recharge slowly and the tract has almost no surface water, nearly every litre pumped for boro irrigation is a litre the aquifer may not recover in the same year. A hydrological investigation carried out by the Institute of Water Modelling for the Water Resources Planning Organisation between 2018 and 2021 found that the High Barind's average water table had fallen from about eight metres below the surface before 1990 to about eighteen metres by 2021 — and to nearly 47 metres at the worst spots — and classified 87 of the 215 unions it studied as high or very high water-stress areas. The International Water Management Institute, in a case study of the Barind experiment, noted that official concern over falling levels had already led to a temporary halt in the expansion of deep tubewells, and warned that farmers relying on shallower private tubewells — still the majority — risked losing access as the water sinks below their reach. In August 2025 the government declared fifty unions across twenty-six upazilas of four districts severely water-stressed, and reporting from Tanore and Godagari in late 2025 described farmers watching even traditionally rain-fed aman crops fail without supplementary irrigation as the rains faltered.

The response, increasingly, is to go back to the surface. BMDA's newer projects re-excavate derelict canals, ponds and beels to store monsoon water, and pump from the rivers that border the tract — the Padma, Mahananda, Punarbhaba, Atrai and Barnoi — into the same buried-pipeline networks the tubewells feed. A Tk 249.40 crore canal-conservation project is designed to irrigate about 3,490 hectares from stored and river water, and a larger scheme, costing about Tk 548 crore, will lift Padma water in two stages into Godagari, Tanore and Paba upazilas to irrigate some 12,500 hectares for around 30,000 farmers, with completion targeted for June 2027. Officials have set a goal of raising surface water's share of irrigation in the region to 30 percent by 2030, and in November 2026 the government moved to expand the Padma-water programme further while directing that BMDA's roughly 17,000 deep tubewells be converted progressively to solar power. Crop diversification away from thirsty boro rice — towards maize, pulses, oilseeds and orchards — is the other half of the official prescription, though boro's profitability keeps it dominant for now.

An old land, a new balance

The Barind remains what it has always been: an ancient red-clay upland standing dry-shod above a flooded delta, home to some of Bengal's oldest history and, until living memory, some of its poorest farmers. The deep tubewell did not change its climate or its soil; it changed the terms on which people could live with both, converting a food-deficit tract into a granary and an orchard belt within a generation. The open question of the Barind's next chapter is whether the surface-water schemes, solar pumps and crop shifts now being assembled can hold that achievement in balance with the falling water table on which it was built — a question that the farmers of Tanore, Godagari and Porsha, watching their gauges drop a little further each dry season, are already living with.