The Reservoirs Reached January's Level in October. Rabi Risk Sits in Two States Now.
By the last verified national print, India's reservoirs were holding the amount of water they normally hold in mid-January — and it was still October. That one fact sets up the whole rabi risk season. The Central Water Commission's weekly series for its 178 monitored reservoirs fell every week of October, and November has not repaired the south: Telangana has converted the shortfall into a formal drought notification covering most of the state, and Tamil Nadu's reservoirs sit at roughly a third of capacity six weeks into the northeast monsoon. For lenders and insurers, the season's question is no longer whether water is short. It is where, exactly, the shortage sits — because the national average hides the two states where it bites.
Four October prints, all downhill
The slide was steady, not sudden. Storage opened October at 132.73 billion cubic metres on 1 October and closed the month at 123.23 BCM on 22 October — about 9.5 BCM drawn down in three weeks, with the monsoon over and no refill source left for most of the country. The year-on-year gap widened at every print, from 20 per cent to 26.4 per cent. One market note put the position plainly: storage near 126 BCM is a level the system normally reaches by mid-January. Rabi irrigation is, in effect, starting the season three months late on water.
| CWC bulletin | Live storage (BCM) | % of live capacity | vs last year | vs 10-year normal |
|---|---|---|---|---|
| 1 Oct 2026 | 132.73 | 72% | −20% | −12% |
| 8 Oct 2026 | 130.98 | 70.89% | −21% | ~−13% |
| 15 Oct 2026 | 126.72 | 68.58% | −24.5% | −16.4% |
| 22 Oct 2026 | 123.23 | 66.7% | −26.4% | −18.4% |
Live storage in the 178 reservoirs monitored by the Central Water Commission (combined live capacity 184.762 BCM), weekly bulletins as reported by Informist. Visualisation: Farmioc.
The regional split matters more than the total. On 22 October the southern region's 50 reservoirs held 42.3 per cent of capacity, against 89.4 per cent a year earlier. The north stood near 58 per cent, against 87 per cent last year. Only the centre, at 84 per cent, was anywhere near a normal rabi starting position. A lender reading the national 66.7 per cent and pricing a Cauvery-command loan book off it would be wrong by roughly 24 points before the season even starts.
Telangana turned the data into a drought order
On 27 October, Telangana stopped describing the season and notified it. The state declared 365 of its 621 mandals drought-affected for Kharif 2026 — 111 of them severe, 254 moderate — across 31 districts. The order's own numbers explain why: state rainfall from June to September came in at 615.5 mm against a normal 740.6 mm, a 17 per cent deficit; kharif cropped area fell from 139.28 lakh acres to 126.06 lakh acres, with paddy down about 18 per cent; and the state's major and medium reservoirs together held 179.63 TMC against a combined capacity of 585 TMC — roughly 31 per cent full, heading into a rabi those reservoirs are supposed to carry.
A drought notification is not a press release. It is the trigger document for the credit machinery: the same order directs district collectors to take up agri-loan restructuring with the State Level Bankers' Committee under RBI guidelines, alongside input subsidy by direct transfer. For a bank with Telangana crop-loan exposure, the 365 notified mandals are now the exact geography inside which restructuring, rescheduling and non-coercive recovery apply. Exposure outside the list gets no such shelter. Telangana is the first state to convert this monsoon into a notified drought; lenders in Andhra Pradesh, Karnataka and Maharashtra should assume the same paperwork may follow there and map their books before it arrives, not after.
Tamil Nadu: the rain came, the storage did not
Tamil Nadu is the harder case, because the easy excuse is missing. Six weeks into the northeast monsoon, the state's Water Resources Department put its 90 reservoirs at 75.7 TMC, or 33.7 per cent of combined capacity on 3 November. Only three reservoirs were full; 43 sat below a quarter. Post-monsoon rainfall for Tamil Nadu and Puducherry from 1 October to 9 November actually ran about 4 per cent above normal. Rain fell. Storage did not follow — department officials point to parched, cracked reservoir beds absorbing the early rain before levels can rise, which means the first part of every wet spell is spent refilling the ground, not the dam.
The Cauvery delta shows what that means in hectares. The delta's samba and thaladi paddy covers 3.62 lakh hectares, about half of it direct-sown — a scarcity practice, chosen because water cannot be counted on. Behind that crop sits Mettur: on 4 November the Stanley Reservoir stood at 56.38 feet against a full level of 120, holding 22.07 tmcft. The Cauvery authority's answer, ratified on 7 November, is a ration: Karnataka to release 3.88 tmcft over 15 days at 3,000 cusecs a day, against a Tamil Nadu demand of about 20.7 tmcft including backlog. That is a dated, checkable input — a delta borrower's water cover for November is a 15-day release schedule, not a reservoir.
Underwrite the basin, not the average
Drill one level below the regions and the picture sharpens again. In the CWC's basin data for 15 October, as reported by Down To Earth, the Pennar basin's storage ran 72.32 per cent below its ten-year normal and the Cauvery basin 60.50 per cent below, with the Krishna basin 32.59 per cent below. Set those against basins running above normal — Narmada, Mahanadi, Subarnarekha — and the national figure dissolves into what it always was: an average of plenty and shortage that describes neither. A rice mill sourcing in the Cauvery delta and a lender financing groundnut in the Pennar basin are carrying the tightest water cover in the country this rabi. A portfolio in the Narmada command is carrying something close to a normal season. Pricing both off one national storage number misprices both.
What to do with this
Three moves follow. Lenders: rebuild the rabi watchlist at basin and command level, using the 22 October CWC position as the opening balance and Telangana's notified-mandal list as the template for where restructuring claims will land first. Insurers: the claim clusters to pre-position for are southern rabi paddy and pulses in the Cauvery, Pennar and Krishna commands, where storage is 33 to 44 per cent of capacity against roughly 89 per cent a year ago — a failed December in the northeast monsoon converts directly into claim probability there. Processors: treat central and western sourcing as the covered leg of the book and southern paddy as the exposed leg, and watch the fortnightly Cauvery release decisions the way you would watch an auction calendar. Farmioc's DataStore holds the reservoir, rainfall and mandi series at district level, so a portfolio can be stress-read basin by basin instead of against a national average that this season, more than most, describes almost nowhere.