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Built for consistent quality and disciplined handling. AUS 32 production aligned to ISO 22241-1 and IS 17042 (Part 1).
Plant Location
Chikballapur, Karnataka
Initial Capacity
Planned: 10,000 Litres/Day
Batch QC
Refractometer + hardness kit
Reach us by phone, email, or WhatsApp. Bulk and franchise inquiries are reviewed against requirement, location, and expected volume.
Fill out the form and our team will respond based on the nature of your inquiry.
Our manufacturing plant in Chikballapur, Karnataka.
Find the plant
Chikballapur, Karnataka, India
Reach us directly through any of these channels.
Phone
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Business Hours
Mon – Sat, 9:00 AM – 6:00 PM IST
We respond within 24 hours
Every diesel engine with a Selective Catalytic Reduction (SCR) system needs AUS 32 - that includes BS-IV, BS-VI, and Euro 6-class platforms across road, off-road, and stationary use.

Trucks, buses, and last-mile LCVs running SCR systems. Bulk-contract or scheduled drum deliveries to depots.
Logistics · Transport · City buses

Higher-capacity tractors and harvesters with after-treatment systems. Seasonal volume for farm storage.
Tractors · Harvesters

Excavators, loaders, cranes, and off-highway machinery with after-treatment systems. IBCs fit site fuel bowsers.
Excavators · Loaders · Cranes

Diesel gensets and stationary engines with SCR. Predictable supply for telecom, data-centre backup, and industrial power.
Telecom · DC backup · Industrial
DEF only works in SCR systems if the chemistry holds - concentration in range, no contamination. Two simple checks run on every batch before it leaves the plant.
International and Indian standards for AUS 32 - composition, handling, transport, and storage all controlled to spec.
Every batch is verified before release. Urea concentration must read in the 31.5%–33.5% range or it doesn't ship.
A reagent kit confirms purity at dispatch - turns blue on on-spec product, pink on contaminated or off-spec product.
32.5% urea + 67.5% deionised water, blended on the same line for every order - bulk lift or franchise pack.
Urea concentration
31.5 % – 33.5 %
Standard
ISO 22241-1 / IS 17042 (Part 1)
Appearance
Clear, colourless liquid
Shelf life
12 months (-11 °C to 30 °C)
AUS 32 is covered by India's Diesel Engines - NOx Reduction Agent AUS 32 (Quality Control) Order, 2024 and the related Indian Standard IS 17042 (Part 1). We update site-specific certification details as operational milestones are completed.
Partners receive bulk AUS 32 from EcoSmart +Blue and sell to fleets and retail customers under the EcoSmart +Blue brand. Discussion-led onboarding, formal agreement on stamp paper.
DEF quality is uneven in the market. Three things drift more than anything else, and each of them costs the engine. We hold all three on every batch that leaves the plant.
Urea concentration
What drifts in the market
DEF in the market sometimes reads below 31.5% or above 33.5%. Either way, the SCR system can't convert NOx properly and may throw fault codes.
What we do
Every batch verified on a refractometer before release. Concentration must read in the 31.5%–33.5% range or it doesn't ship.
Recurring demand
AUS 32 is consumed continuously in BS-IV and above SCR diesel - repeat orders, not one-time.
Phased entry
Territory size and entry terms scale with the partner's reach and capacity.
Onboarding support
Product handling, storage, and commercial guidance during partner setup.
Open territories
Reach out for territory availability - discussion-led, not auto-approved.
Key terms (summary)
Full terms - refund structure, operating obligations, and compliance requirements - are in the PDF above.
We review every inquiry and reply directly.
Urea grade
What drifts in the market
Cheaper agriculture-grade urea sometimes gets blended in. It carries impurities that crystallise inside the SCR catalyst and shorten its life.
What we do
Government-approved technical-grade urea only. Same supplier, same grade, on every batch - no blending with cheaper substitutes.
Water content
What drifts in the market
Adding water to stretch volume produces fluid that looks the part but starves the SCR system of urea - so the engine pays the cost on efficiency and emissions.
What we do
32.5% urea, 67.5% deionised water - every batch, no exceptions. The recipe doesn't move to chase margins.
Every EcoSmart +Blue franchise receives the identical fluid from the same Chikballapur line. No territory-specific blends, no different quality tiers.
Built to ISO 22241-1 - the same specification used by OEM-supplied DEF brands across India. The fluid that goes into a Tata, BharatBenz, or Gulf-fuelled vehicle is built to the same standard as ours.
DEF that meets spec keeps the SCR catalyst clean and lets the engine run at the efficiency it was designed for. Off-spec fluid quietly compromises both.
Initial Capacity
Planned: 10,000 Litres/Day
Standards
ISO 22241-1 · IS 17042 (Part 1)
Supply Model
Bulk direct · retail via franchise
Vehicle Scope
BS-IV and above SCR diesel
Quick answers to the things buyers and prospective partners ask most. Vehicle scope, formats, urea grade, and franchise terms are covered in their own sections above.

EcoSmart +Blue is the AUS 32 manufacturing operation of Aum SLN Enterprises. The plant is commissioned and producing Diesel Exhaust Fluid using government-approved technical-grade urea (GNFC) and deionised water, blended to the 31.5%–33.5% concentration specified by ISO 22241-1 and IS 17042 (Part 1).
Bulk ships direct from the plant — 200 L barrels, 1000 L IBCs, and tankers. Smaller volumes reach customers through our franchise partners, who sell under the EcoSmart +Blue brand.



200 L barrels, 1000 L IBCs, and tankers ship in bulk from Chikballapur to franchise depots and businesses. The 5 / 10 / 20 L formats reach customers through our franchise partners, sold under the EcoSmart +Blue brand. Same fluid, same specification, every order.
Customised tanker volumes for franchise depots and large fleet operators on scheduled replenishment.
Suited for
Distributors · OEMs · Large fleets
Sized for franchise yards, transport hubs, and service networks. Fitted with a dispensing valve.
Suited for
Franchise yards · Transport hubs
Standard direct-from-plant format for franchise depots, bus operators, and industrial clients.
Suited for
Bus depots · Workshops · Industry
Smaller volumes reach customers through our franchise partners - sold under the EcoSmart +Blue brand.
Suited for
Workshops · Service stations · Owners