Kisan Raja Samrat Motor Controller Review

If you have ever driven back to the field at 2 a.m. because that is when the transformer finally gave you power, you already understand what this device is for. A mobile motor controller lets you start and stop your irrigation pump with a phone call — from your house, your bed, or a wedding three villages away.

Kisan Raja's Samrat is one of the older, better-known names in this category in India. Here is what it actually does, what it costs, and what to check before you buy one.

What it does

Stripped of marketing language, the Samrat does four jobs:

Remote control. Turn the motor on or off by phone call, SMS or the Kisan Raja app, in a local-language IVRS menu. Up to four people can be authorised to operate the same device — useful when a field is worked by more than one family member.

Protection. It cuts power to the motor on high or low voltage, on a cut phase wire, and when the borewell runs dry (dry-run protection) — the single most common way a submersible pump burns out. It also detects a return of power after an outage and can call you to say so.

Automation. A built-in auto mode means you do not need a separate auto-starter panel, and you can set a timer so the pump runs only for a fixed window — useful for both power-bill and groundwater discipline.

Theft alert. If someone tampers with or tries to remove the device, it calls you.

Kisan Raja rates the Samrat for pumps up to 30 HP, which covers the large majority of Indian agricultural borewell and open-well setups.

What it costs

This is the one place the Samrat is genuinely hard to pin down. As of this writing, Kisan Raja's own online store lists it as "Price on Request" with a note that dispatch is delayed due to a manufacturing backlog, and its Amazon listing shows "Currently unavailable." Neither will give you a number.

What you can go by is the price of comparable GSM/app-based controllers from other brands, sold on the same platforms:

Budget ₹5,000–₹7,000 for this category of device. On top of that, it needs its own prepaid SIM with a basic recharge kept active — a small but real running cost, separate from the one-time purchase.

Note that simpler automatic water-level controllers (Crompton INTELLISENSE, RATNOTECH — both around ₹3,200–₹3,400) are a different, cheaper category: they switch a pump based on tank level using a sensor, not a phone call from anywhere. If all you need is "stop the motor when the tank is full," that is the cheaper and simpler device. If you need to start and stop a borewell motor from wherever you are, you need the phone-based kind.

The 2G-versus-4G catch

The Samrat's listing does not specify which mobile network generation it runs on, and it has been on the market since 2014 (per its manufacturer, Vinfinet Technologies) — old enough that it may well be built on 2G. Indian telecom operators have been steadily shrinking 2G coverage in favour of 4G, and it is exactly why competitors now market their newer models explicitly as "4G" (see the Nyasta and NEER models above). Before you buy, ask the dealer directly which network generation the unit uses — a 2G-only device is a risk in a district where that network is being phased down.

Installation

Kisan Raja describes installation as straightforward, and it carries a 12-month warranty against manufacturing defects. Read the fine print, though: damage traced back to improper installation, wrong voltage, or overloading the rated capacity is not covered. For a device wired directly into your motor's power supply, it is worth paying an electrician who has installed one before rather than doing it yourself to save a few hundred rupees.

Getting hold of one

Given the current availability gap, your best route is a direct call rather than an online cart: Kisan Raja's helpline, or a local agricultural equipment dealer who stocks the brand. If it stays unavailable, any of the comparable 4G controllers above will do the same core job — remote call/SMS/app control with dry-run and voltage protection — at a similar price.

The honest recommendation

For a farmer irrigating from a borewell or open well who is currently walking to the field or paying someone to switch the motor on and off, a device in this category pays for itself quickly in saved trips, saved labour, and a motor that is not burning out on dry-run. Whether it is specifically the Samrat or a newer 4G-branded competitor at a similar price matters less than the core feature set: remote on/off, dry-run cutoff, voltage protection, and a timer. Confirm the network generation, buy from a dealer who will stand behind the installation, and budget for the SIM.

Frequently asked questions

What does the Kisan Raja Samrat mobile motor controller actually do?

It lets you switch your irrigation motor on or off with a phone call, SMS or app from anywhere — up to 4 people can operate it. It also protects the motor from high/low voltage and phase-wire cuts, shuts it off if the borewell runs dry, calls you when power goes or comes back, and warns you if someone tries to steal the device.

How much does the Kisan Raja Samrat cost?

Kisan Raja does not list a public price — the manufacturer's own store shows 'Price on Request' and notes dispatch delays, and its Amazon listing is currently unavailable. Comparable GSM/app-based motor controllers from other brands (Nyasta, RMG, NEER) sell for roughly ₹5,000–₹7,000, which is the realistic band to budget for. Call Kisan Raja's helpline or a local dealer for the current price.

Do I need a separate SIM card for it, and is there a running cost?

Yes — the device works over the mobile network, so it needs its own SIM with a basic prepaid recharge kept active. Budget a small monthly cost for that recharge on top of the one-time purchase price.

Is the Kisan Raja Samrat still available to buy?

Availability is patchy as of this writing — its Amazon listing shows 'Currently unavailable' and its own online store flags a manufacturing delay. It is a genuine, long-running product (on the market since 2014, per its manufacturer Vinfinet Technologies), so it is worth calling a dealer directly rather than assuming it is discontinued. If it stays hard to source, a 4G alternative from another brand is a reasonable substitute — see the note on 2G vs 4G below.

Written by

Vaibhav Dhama

Founder, Technical Kisan

Vaibhav Dhama is the founder of Technical Kisan. He writes from Baghpat, Uttar Pradesh, and builds each guide on ICAR and state agricultural university guidance, official government scheme notifications, and live mandi-price data.

• Writes from Baghpat, Uttar Pradesh
• Software developer (BTech, 2021)
• Not a trained agronomist — confirm with your KVK

Read Vaibhav Dhama’s full bio

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