Stubble Smoke Is a Groundwater Story Too: Paddy, Pumps and Haryana's Dark Zones

On the morning of 6 November, Delhi's air quality index was 389, "very poor", with Rohini and IIT Delhi in the "severe" band, and Stage II of the Graded Response Action Plan was in force across the NCR. As every November, the argument is about farm fires in Punjab and Haryana.

The smoke is the part we can see. The part we cannot see is underground: the same paddy crop that leaves the straw is the biggest reason Haryana's aquifers are emptying. This post connects the two, using the Central Ground Water Board's (CGWB) district figures.

This year's farm fire numbers

The good news is that fires are down. Between 15 September and 1 November, the Commission for Air Quality Management counted:

Punjab's own count reached 2,347 by 4 November, led by Tarn Taran and Ferozepur, and the season is not over. Punjab and Haryana will still produce about 18.8 and 8 million tonnes of paddy straw this season, and more of it than ever is now baled and sold to boilers and power plants instead of burnt.

Why farmers burn: the water law behind the timing

Paddy is transplanted into flooded fields. Transplanting in May, in the hottest weeks of the year, loses enormous amounts of water to evaporation. So in 2009 both Punjab and Haryana passed laws barring transplanting until mid-June, to save groundwater.

The law worked for water. But it moved the harvest to late October, and wheat has to be sown by mid-November for a full yield. That leaves farmers two or three weeks to clear a field covered in straw. A match is the fastest and cheapest way to do it. Stubble burning is, in part, the side effect of a water-saving rule. It is a sign of how hard paddy presses on the water table that the states chose smoke risk over water loss.

How much groundwater the paddy belt pumps

CGWB measures a district's stage of groundwater extraction: the water pumped in a year as a share of what rain, canals and irrigation return put back. Above 100%, the district is over-exploited, a "dark zone".

Haryana as a whole pumps 137% of its recharge and Punjab 156%; Sangrur in Punjab is past 300%. The Haryana dark zone list and the Punjab list show every district. In the paddy belt, nearly all of that water goes to the fields. Paddy is usually estimated to take 3,000 to 5,000 litres of water for each kilogram of rice, much of it pumped from tubewells on free or cheap farm power.

Compare Gurugram, at 195%: there, about half the pumping is for homes, offices and industry rather than farms. Cities are not off the hook; they are just a different kind of user.

What is changing on the farm

• Direct seeding of rice (DSR). Seed is drilled into the soil instead of transplanted into a flooded field, which saves water and labour and can let the crop be harvested earlier. Punjab is targeting about 5 lakh hectares under DSR this year.
• Moving out of paddy. Haryana's Mera Pani Meri Virasat scheme pays ₹8,000 per acre to farmers who switch from paddy to other crops, with an extra ₹2,000 for moving to cotton.
• Handling straw without fire. Happy Seeders and balers let wheat be sown into the stubble or the straw be sold, and the falling fire count shows they are spreading.

Putting water back

Using less is half the answer. The other half is recharge: catching the monsoon and sending it down to the aquifer instead of into a drain. In the paddy belt that means village ponds that hold water through the dry months and recharge shafts at low points in the fields. In towns and cities it means a recharge pit for every roof. The rainfall pages show how much rain falls in each district, and the recharge pit calculator turns a roof or field area into litres recharged.

We build borewell recharge systems and revive village ponds. For companies with CSR funds, CSR water conservation explains how we deliver recharge in villages and report the results. If your own borewell is weakening, start with how to recharge a dry borewell, or talk to us.

Sources

• Delhi AQI and Punjab fire count to 4 November: Business Standard, 6 November 2026.
• CAQM fire counts and straw estimates: Outlook India.
• Mera Pani Meri Virasat incentives: Drishti IAS, 25 May 2026.
• Groundwater figures: CGWB Dynamic Ground Water Resources assessment, 2025, as shown on our district pages.