-by Jaya Pathak
The next great stress test for Indian business may not arrive from a credit cycle, a currency shock or another supply-chain rupture. It may arrive at noon, with a delivery rider waiting at a traffic signal, a mason working on the 19th floor of an unfinished tower, a diabetic supervisor skipping water to avoid another walk across a factory yard, and an emergency ward quietly filling up before anyone calls it a crisis.
Heat has always been part of the Indian operating environment. That familiar argument is now becoming dangerous. What has changed is not merely the headline temperature but the violence of the rise, the timing of the spike, the density of exposure and the number of people whose bodies are expected to absorb the adjustment on behalf of the economy. A sudden temperature rise is not a weather event in any narrow sense. It is a biological shock, and increasingly, a balance-sheet event.
The body does not adapt on command. Early heat is often more punishing than peak summer because people have not yet acclimatised. Sweat response is slower, sleep is poorer, and the cardiovascular system is pushed into harder work before it has built tolerance. In a spreadsheet, a jump from 36 degrees to 43 degrees may look like seven degrees. In a body, it can mean dizziness, falling blood pressure, thickening dehydration, confused judgment and a heart forced to compensate minute after minute.
The most dramatic cases become heatstroke, and rightly so; it is a medical emergency, not a severe version of discomfort. But the larger story is less visible. Heat exhaustion weakens workers before they collapse. When your body doesn’t have ample amount of water then it just puts extra pressure on your kidneys. People who are already facing hypertension, coronary disease and heart failure, their body is at higher risk in heat.
When it is hot outside then your body tries to cool down by sending more blood towards the skin and making your heartbeat even faster. In healthy people heart can easily perform this activity but people facing such issues, the body’s attempt to cool itself can become quite dangerous. Diabetes even complicates hydration and circulation. People with diabetes can get dehydrated more easily and their blood circulation might not adjust to heat as well as healthy persons.
There are certain medications which can make it harder for the body to handle the hot weather outside. Some drugs can reduce your sense of thrust whereas some can affect how your brain is controlling the temperature but such medication can increase the risk of heat exhaustion or even stroke. Pregnancy adds another layer of vulnerability, especially where transport, rest and cooling are unreliable.
This is why the health risk of sudden heat is so often misread. It rarely announces itself as one clean category. It shows up as a fainting episode at a site, a spike in emergency visits, a road accident after poor sleep, a worker absent for two days, a security guard with cramps, a municipal employee with kidney trouble, a warehouse team moving more slowly than planned. The cost is scattered, which makes it easier to ignore.
Business leaders should be wary of that convenience. Much of India’s growth still depends on heat-exposed labour, even when the final product looks digital, financial or premium. The office building generally has a cool and comfortable entrance area and has air-conditioned lobby. But the construction workers who actually built that lobby do not have the access of air conditioning. They had to work in heat and dust.
Most of the ecommerce platforms are promising and advertising very fast deliveries such as instant delivery or same day delivery to attract more and more consumers but the question is who has at the risk? It is the delivery person who is making that promise possible.
The food company depends on farm output; the agricultural worker faces longer unsafe hours in the field. The hospital chain may expand capacity; its own nurses, ambulance staff and maintenance crews work inside a stressed urban system.
There is a particular fiction in corporate India that formal employment marks the boundary of responsibility. Heat exposes the weakness of that fiction. Contractors, housekeeping staff, guards, drivers, loaders, canteen workers and gig workers are often the first to absorb climate stress and the last to appear in board presentations on resilience. A company may not legally employ all of them, but operationally it depends on them. Investors are beginning to understand that distinction. Insurers will, too.
The most exposed sectors already know the problem, though not all admit its scale. Construction schedules bend around afternoon heat, sometimes unofficially. Logistics fleets discover that routing software cannot cool a rider. Manufacturing plants with radiant machinery face indoor heat even when outdoor temperatures dominate the news.
Ports, mines, road projects, farms and urban services experience a more direct arithmetic: work slows, breaks increase, error rates rise, and injury risk climbs. Productivity loss is not an abstract macroeconomic estimate for these sectors. It is the missed pour, the delayed dispatch, the failed shift, the accident report.
The health system is the second place where the illusion breaks. Heat illness can surge quickly, often within the same day and the days immediately after extreme temperatures. Hospitals need trained staff, cold rooms, fluids, power backup, ambulances that can respond, and reporting systems that do not depend on heroic improvisation. Some state and city administrations have begun preparing more seriously, with heat action plans, surveillance and public advisories.
In open areas, the problem is even worse. There is little amount of shade, excessive deforestation, metal roofs and poor ventilation system. People are installing air condition and availing the facilities of cars and scooters which ultimately degrading environment. When nights remain warm, heat stress compounds. For a senior executive in a cooled apartment, night heat may mean a larger power bill. For a family under a tin roof, it may mean no sleep, no recovery and a weaker body returning to work the next morning.
Cooling access, therefore, is not a lifestyle marker alone. Nowadays not simply about comfort but has become a major factor in deciding whether your day will be productive or not. But quitting brings its own complications. It often demands high electricity and greater electricity grid system which ultimately leads to unequal access. Businesses that rely on low-paid labour cannot pretend this divide sits outside their operating model.
What can be done?
Such a situation demands real solution not merely reminders. If I truly want to protect workers from heat then we can change their shifts. Clean water and drinks such as ORS and lime water should be easily available so that anyone can drink in need. The early signs of heat illness such as dizziness or heavy sweating must be dot to individuals so that they can spotted by identifying the symptoms. There should be some emergency transportation system as well.
Indoor heat, ventilation and equipment layout matter. For delivery and field operations, route planning and rest protocols matter. For agriculture-linked businesses, procurement risk must include worker safety and crop stress, not only price.
The ESG industry, with its polished vocabulary and uneven seriousness, should also take note. Companies should now report how much greenhouse gas they are emitting as it is quite important for climate transparency and regulations. But if it is merely in paper but not in practice then it is not giving a full picture.
Therefore, it is quite important for companies to disclose their carbon emission and take the responsibility of protecting its worker because due to changing climate human health and safety is deteriorating day by day. It is about whether a person can stand safely in a yard, ride across a city, pack goods in a warehouse or return from a field without organ stress.
