Satellite crop advice on WhatsApp

Know what your field needs, every week.

VarshaKrishi watches your own field from space and sends one clear WhatsApp message a week, in Marathi, Hindi or English: what changed, what to check, and when to act.

Read in your language: मराठी हिन्दी English

Your field, not your district Date and source on every message Reply in one tap

Example of a weekly message for a Nagpur orange orchard.

Built on public satellite data and open science

  • Sentinel-2ESA Copernicus, 10 m optical
  • Sentinel-1Radar that sees through cloud
  • NASA HLSLandsat and Sentinel, harmonised
  • FAO-56Global standard for crop water
  • 10 m pixelsYour field, square by square
  • Every 2 to 5 daysA new view of the same field
  • 3 languagesMarathi, Hindi and English
Why it matters

Most farm decisions are made by habit, because nobody looks at each field every week.

A district forecast cannot tell you that the lower half of your orchard is drying out. A satellite passes over every field in India every few days. We turn that view into one short message you can act on.

  • Your field, not your district

    We read the satellite pixels inside your own field boundary and compare them with your field's own history, week after week.

  • In your language, on WhatsApp

    No app to install. One short message a week in Marathi, Hindi or English, with buttons to reply in one tap.

  • Clear about what it cannot see

    A cloudy week or a very small plot? The message says so and tells you what to check yourself, instead of guessing.

For farmers

Watch is free for any field in India.

One short WhatsApp message a week in Marathi, Hindi or English, with a date and a source.

For partners

Sponsor a season for the farmers you work with.

Farmers pay nothing. You get a live dashboard and a season report.

Research and government: reference plots and field data

See it in under a minute

From a satellite pass to a message on your phone.

Real Sentinel-2 images and readings of one field near Katol. The phone, checklist, dashboard and season report are illustrations with example data. Original music; the narration voice is AI-generated. Contains modified Copernicus Sentinel-2 data 2026.
What the film shows
  1. Your field, seen from space every week: Sentinel-2 satellites photograph every farm in India every few days.
  2. From the 4 km around Katol down to one farm, read square by square at 10 m.
  3. Cloudy passes are set aside: real passes of 9 July (fully clouded), 14 July (cloud masked, field clear) and 12 October.
  4. The farm's greenness (NDVI), compared with its own history and the fields around it. On 20 May it fell 38% in ten days, against 22% nearby.
  5. One WhatsApp message in Marathi, Hindi or English: what changed and what to check this week. One tap on Checked, and next week's advice knows what you did.
  6. Free for farmers. Sponsors back a season for a group and get a season report, never a farmer's personal data.
Seen from space

Every field in India is photographed every few days. We read yours.

A real Sentinel-2 image around one 3.2-acre field near Katol, in the Nagpur orange belt. Switch to the greenness view to see what the satellite measures, field by field.

  1. Dense green is healthy canopy.Orchards and well-watered crops read darkest.
  2. Pale parcels are bare or drying.A field that turns pale faster than its own history is worth a visit.
  3. Each square is 10 m by 10 m.This field is 129 squares. We read the squares inside your boundary, not the district average.
True-colour Sentinel-2 image of farmland around one 3.2-acre field near Katol, Nagpur district, on 12 Oct 2026, with the field outlined The same area as an NDVI greenness map: dark green is dense healthy canopy, pale yellow and brown are bare or dry fields 1.2 km × 0.9 km · each square 10 m
Real image: one 3.2-acre field near Katol (outlined) and its neighbours, Sentinel-2, 12 Oct 2026. Contains modified Copernicus Sentinel data, processed by VarshaKrishi.
How it works

From one field to one message. No app to install.

Scroll through a real field near Katol: how it is found, read from space, compared with its own past and turned into advice.

True-colour Sentinel-2 image, about 1.2 km × 0.9 km, around a 3.2-acre field near Katol, with the field outlined
The same field up close: each visible square is one 10 m Sentinel-2 pixel
Greenness (NDVI) of the same squares: dark green is dense canopy, pale is bare or dry
Real data: one field near Katol, Nagpur district (Sentinel-2, 7 Oct 2025 to 12 Oct 2026). Boundary drawn by VarshaKrishi from the image for illustration. Contains modified Copernicus Sentinel data, processed by VarshaKrishi.
  1. 1

    Share your field once

    Send your location on WhatsApp or tell us on a call. We draw the boundary with you. This one is a 3.2-acre field near Katol.

  2. 2

    A satellite passes every few days

    The European Sentinel-2 satellites photograph every field in India every five days or sooner, including light the eye cannot see. Cloudy passes are set aside.

  3. 3

    We read only your squares

    Each square is 10 m by 10 m. This field is 129 squares. Your advice comes from these, not from a district average.

  4. 4

    Greenness, square by square

    Leaves reflect near-infrared light strongly. The ratio, called NDVI, shows how dense and active the canopy is. Darker green means denser leaves.

  5. 5

    Compared with its own past

    Every clear pass for a year, this field against the fields around it. On 20 May its greenness fell 38% in ten days, faster than its neighbours. That is what a message is for.

  6. 6

    One message you can act on

    What changed and what to check this week, in Marathi, Hindi or English, on the phone you already have.

The weekly message

Short enough to read in the field. Specific enough to act on.

Every message is under 300 characters and carries its date and source. These are examples of the three kinds a farmer receives.

  • Watch
    Orange orchard: the lower half is 12% less green than last week and only 2 mm of rain fell in 10 days. Walk the lower rows this week and check the drip lines.Source: Sentinel-2 · example
  • Act · Decide plan
    Irrigate within 2 days. Soil water in the root zone is below the safe level for this stage and no rain is forecast for 5 days.Source: Sentinel-2, weather forecast, FAO-56 · example
  • No clear view this week
    Cloud covered your field on 6 of the last 7 passes. Radar shows no standing water. Walk the field once; we will look again next week.Source: Sentinel-1 radar · example

How every message is computed

Download a year of real satellite readings for one Vidarbha field (open data)

  • 10 mSize of one Sentinel-2 pixel on your fieldESA Copernicus
  • 2–5 daysBetween Sentinel-2 passes over the same fieldESA Copernicus; passes over Katol, Aug–Oct 2026
  • 1Message a week per field, under 300 charactersOur message rule
  • 3Languages today: Marathi, Hindi, EnglishOur message rule
Eight monsoon weeks over one field

A message every week, even when the clouds win.

Every Sentinel-2 pass over the field near Katol from 17 Aug to 12 Oct: 15 passes, 5 clear views. When clouds hide the field, the week's message says so instead of guessing.

17 Aug24 Aug31 Aug7 Sep14 Sep21 Sep28 Sep5 Oct12 Oct
  • Clear view of the field (5)
  • Pass, field under cloud (10)
  • Message day, every week
Every Sentinel-2 pass over one field near Katol, 17 Aug to 12 Oct 2026, from the scene data and a cloud mask on the field itself. Message days show the weekly schedule, not messages sent to this field. Contains modified Copernicus Sentinel data, processed by VarshaKrishi.
A year over Katol

One field, four times a year.

Real images of the same 3.2-acre field near Katol, outlined. Its average greenness (NDVI): 0.53 on 26 Dec 2025, 0.55 on 19 Feb 2026, 0.61 on 10 May 2026 while unwatered land around it turns bare, and 0.74 after the monsoon.

  1. 26 Dec 2025 Sentinel-2 true-colour image of one field near Katol on 26 Dec 2025, each square 10 m NDVI greenness of the same field on 26 Dec 2025 NDVI 0.53

    Winter. Many orchards are kept dry before the ambia bahar.

  2. 19 Feb 2026 Sentinel-2 true-colour image of one field near Katol on 19 Feb 2026, each square 10 m NDVI greenness of the same field on 19 Feb 2026 NDVI 0.55

    Water restored, flowering. Rabi fields maturing.

  3. 10 May 2026 Sentinel-2 true-colour image of one field near Katol on 10 May 2026, each square 10 m NDVI greenness of the same field on 10 May 2026 NDVI 0.61

    Peak summer. Only irrigated blocks stay green.

  4. 12 Oct 2026 Sentinel-2 true-colour image of one field near Katol on 12 Oct 2026, each square 10 m NDVI greenness of the same field on 12 Oct 2026 NDVI 0.74

    After the monsoon. Kharif crops and orchards in full leaf.

Real images of the same 3.2-acre field near Katol (outlined), Sentinel-2. Top: true colour. Bottom: NDVI greenness and the field average. Contains modified Copernicus Sentinel data, processed by VarshaKrishi.
Plans

Free for every farmer. Deeper advice where it is proven.

Watch

Freefor any field in India

  • What changed on your field this week
  • Weather for your village
  • A clear note when the satellite cannot see
  • In Marathi, Hindi or English

Crop stages for rice, wheat, cotton, sugarcane, soybean, maize, pulses and vegetables. Any other crop gets trend and weather.

First crop: Nagpur orange, Vidarbha, 2026-27

Decide

Season passor sponsored by a partner

  • Everything in Watch
  • When to irrigate, with a time window
  • Where the stress is in your orchard
  • An agronomist looks when something is wrong

Decide opens crop by crop, only after an agronomist has reviewed the crop model.

For partners

Sponsor a season for the farmers you work with.

Processors, drip and input companies, FPOs, CSR foundations and government programmes can put a whole group of farmers on Decide. Farmers pay nothing. You get a live dashboard and a season report.

Where Decide starts

Watch for all of India. Decide starts in Vidarbha.

Watch works for any field in the country. Decide, with irrigation timing, opens first for Nagpur orange growers in Vidarbha for the 2026-27 season, then crop by crop and region by region.

Map of Maharashtra with Vidarbha highlighted The 11 districts of Vidarbha in eastern Maharashtra are highlighted; Nagpur district is darkest and a pin marks Katol in the Nagpur orange belt. District boundaries from geoBoundaries (ODbL), source lgdirectory.gov.in. VIDARBHA Mumbai Pune Nagpur Katol

District boundaries: geoBoundaries (ODbL), from lgdirectory.gov.in.

Our promises

Advice a farmer can trust, by design.

  • We never sell farmer data.Farmers consent in their own language. Partners see group reports, never a farmer's phone number.
  • Sponsors never edit a message.Advice comes from data and published rules. No product placement, ever.
  • Every message shows where it came from.The date and the satellite on every message, and our methods published for anyone to check.
  • We say when we cannot see.Cloud, small plots and new fields are named plainly, never hidden behind a guess.
  • Paid advice only after expert review.Decide opens for a crop only after an agronomist has reviewed its model.
Tanmay Sahare, founder of VarshaKrishi
A note from the founder

Satellites already pass over every farm in India. VarshaKrishi exists so that view reaches the farmer who needs it most, in the words they use, on the phone they already have.

Tanmay SahareFounder, VarshaKrishi · Aerospace Engineering, IIT KanpurEiR Fellow, 5G/6G Centre of Excellence, FIRST, IIT Kanpur

About VarshaKrishi

Questions

Common questions

Is it really free?

Yes. Watch is free for any field in India. Decide, the crop-specific plan with irrigation timing, is a season pass that a partner such as an FPO, processor or programme can pay for on the farmer's behalf.

Do I need a smartphone?

You need WhatsApp on any phone that runs it; a family member's phone works too. Until WhatsApp joining opens in your area, you can register by phone call.

How often does the satellite see my field?

Sentinel-2 passes over the same place about every 5 days, but cloud decides how often your field is actually visible. Over one field near Katol, 56 of 91 passes in a year gave a clear view; from 21 June to 2 September 2026, only 1 of 20 did. When the field cannot be seen, the message says so.

Which crops and places do you cover?

Watch works for any field in India, with crop stages for rice, wheat, cotton, sugarcane, soybean, maize, pulses and vegetables. Decide starts with Nagpur orange in Vidarbha for the 2026-27 season and opens to more crops and regions after each crop model is reviewed by an agronomist.

How is this different from a weather app?

A weather app tells you about your district. VarshaKrishi looks at your own field: the satellite pixels inside your boundary, compared with your field's own history, together with the forecast for your village.

Is my data safe?

You give consent in your own language when you join. We never sell farmer data, partners see only group reports, and you can stop messages or ask us to delete your details at any time.