6,000–8,000 Tankers A Day: What Is Happening To Hyd’s Water Supply?

Hyderabad usually sees water tanker demand rise as temperatures climb towards summer. This year, however, the rush has arrived much earlier. By October, the Hyderabad Metropolitan Water Supply and Sewerage Board (HMWSSB) was receiving between 5,000 and 8,000 tanker bookings a day, compared with the usual off-season demand of 800 to 1,500 bookings. The increase comes as the monsoon draws to a close, groundwater levels fall and concerns grow over the city’s drinking-water reservoirs.

The scale of the change is striking. HMWSSB booking data cited showed 62,565 bookings recorded in October, a 233% increase over the 18,806 bookings recorded during the comparable period last year. The surge was particularly sharp in Boduppal, LB Nagar and Manikonda. The report also noted that the Board was delivering tankers within 24 hours but expected waiting times to increase as demand rose. 

The concern is not simply that more households are ordering water. It is that demand is rising during a period when the city would ordinarily expect some relief after the monsoon. Tankers have become an important fallback for households and apartment complexes whose regular supplies or borewells cannot meet their needs. An early rise in bookings could therefore be a warning of the pressure the city may face through the drier months.

How much water does Hyderabad need?

HMWSSB supplies approximately 585 million gallons of water per day (MGD) across its expanded urban service area. Against a projected requirement of 735 MGD, that leaves a reported gap of 150 MGD. Converted into metric units, the supply is about 2,214 million litres per day (MLD), against a requirement of around 2,782 MLD. 

These figures need to be read carefully. The gap between estimated demand and municipal supply does not tell us how much water is being delivered by private tankers or extracted from borewells. Nor does the number of tanker bookings reveal the volume delivered: tanker capacities vary, and bookings are not the same as confirmed deliveries. Still, the reported shortage helps explain why households with unreliable piped supplies are turning to alternative sources.

A weak monsoon leaves less room for error

Rainfall has added to the pressure. Hyderabad received 458.2 mm of rain against a normal 627.2 mm during the 2026-27 water year up to September, a deficit of 27%, according to the Hyderabad Ground Water Department. Thirteen of the district’s 16 mandals recorded rainfall deficits ranging from 20% to 59%.

Rainfall in Hyderabad. Bottom graph shows deficit of 2026. Source: https://www.neervazhvu.org/hyderabad

A rainfall deficit affects the city through more than one route. It can reduce inflows into reservoirs and limit the recharge of groundwater on which many homes and residential complexes depend. The consequences are especially visible where borewells that once supplied water reliably begin yielding less or stop functioning. It was reported that borewells in some IT corridors and peripheral residential areas, previously yielding water at depths of around 300 feet, were running dry even at 800 to 1,000 feet. 

El Niño has featured in explanations of the broader weather risk, but it should not be treated as the sole cause of Hyderabad’s shortage. The more immediate evidence is the rainfall deficit, falling groundwater availability and the strain on the existing supply system.

Reservoirs are not equally placed

The situation also varies across Hyderabad’s water sources. In October, HMWSSB was drawing 69.50 MGD from Singur against a scheduled allocation of 75 MGD, and 39.55 MGD from Manjeera against 45 MGD. The Board was operating emergency pumps and considering a 10 MGD reduction in Manjeera supply from December to conserve water ahead of summer. This was a proposal, not a confirmed reduction already implemented. 

Water being drawn from reservoirs. Source: HMWSSB

Meanwhile, the Board has said that the existing overall reservoir stocks could be managed to maintain supply until summer 2027, even as it monitors groundwater depletion and prepares contingency plans. The distinction matters: pressure on individual sources does not automatically mean the entire city is about to run out of water, but it can make maintaining supply more difficult and expensive.

Water levels in reservoirs. Source: HMWSSB

The real test comes before summer

The government and HMWSSB now face two connected tasks: maintaining dependable drinking-water supply and reducing the amount of potable water used for purposes that do not require it. The Board has discussed supplying treated wastewater for construction, landscaping and industrial use, while also exploring additional supply arrangements. Such measures could ease pressure on drinking-water sources, but their impact will depend on how much water they actually deliver and how quickly they become operational.

The early tanker rush is therefore a warning, not proof that Hyderabad is about to run dry. Its significance lies in the timing. If demand is already reaching summer-like levels in October, the city has less room to absorb further groundwater depletion or a prolonged dry spell. The key questions over the coming months will be whether tanker bookings continue to rise, whether reservoir stocks hold up, and whether alternative supplies can close part of the gap.

Hyderabad’s water problem is not explained by rainfall alone. The immediate shortfall is being compounded by dependence on groundwater and the challenge of supplying a rapidly expanding urban region. The early rise in tanker demand brings that problem into sharper focus well before summer begins.