Cast iron has been the material of choice for serious Indian cooking for centuries — and for very good reason. Nothing retains heat quite like it. Nothing delivers the deep, authentic flavours of a proper bhuna or karahi quite like a cast iron kadhai. But traditional cast iron has always come with a trade-off: it is heavy, it needs careful seasoning and maintenance, and its porous surface can attract rust if not cared for properly. The Futura Ironman Slim Cast Iron Kadhai (IMK25G) is Hawkins' answer to all of those concerns. Built from nitrided iron — a technologically advanced form of cast iron where the surface is hardened through a nitriding process — the Ironman delivers the essential benefits of cast iron cooking while addressing its traditional limitations. The nitriding makes the surface harder, more abrasion-resistant, less porous, and significantly more corrosion-resistant than conventional cast iron, which means it is less likely to rust, needs less oil to cook non-sticky food, and is more tolerant of daily use without intensive maintenance. It is cast iron for the modern Indian kitchen.
The slim, lightweight design of the Ironman Kadhai is its other major innovation over conventional cast iron. Traditional cast iron kadhais at 2.5 litres can feel unwieldy on the daily — heavy to lift, heavy to carry to the table, heavy to handle over a flame for extended periods. The IMK25G maintains the superior heat retention and heat distribution that make cast iron irreplaceable for Indian cooking — the even, consistent heat that fries crispily without burning, that keeps food warm long after the flame is off, that sears properly and cooks through deeply — but achieves it in a body that is meaningfully lighter and easier to handle. With a 26 cm diameter and 2.5 litre capacity, it is ideally sized for curries, deep frying, gravies, snacks, and everyday sautéing for 3 to 4 persons, and the included heat-proof glass lid lets you cook covered while keeping an eye on your food.
The IMK25G is compatible with both induction cooktops and gas stoves — a significant practical advantage over some cast iron pieces that only work on gas or open flame. The non-reactive surface ensures your food retains its natural taste without unwanted reactions with acidic or alkaline ingredients. Metal ladles can be used without concern. High heat is handled effortlessly. And because the nitrided surface is lower-porosity than traditional seasoned cast iron, it uses less oil while still achieving the natural non-stick cooking quality that cast iron is beloved for. This is a kadhai built to last generations — and to perform reliably from day one.
Nitriding is a surface-hardening process where nitrogen is diffused into the iron surface at controlled temperatures, creating a harder, denser outer layer. For cookware, this means the IMK25G's surface is significantly more abrasion-resistant than traditional cast iron, less porous (which reduces the tendency to absorb flavours or require frequent re-seasoning), more resistant to rust and corrosion, and requires less oil to cook without food sticking. The nitrided surface retains all the heat-retention and flavour-development benefits of cast iron while being more practical to maintain in daily Indian kitchen use.
The slim body design of the Ironman Kadhai reduces overall weight compared to conventional full-thickness cast iron kadhais of the same capacity, while preserving the essential mass and density that gives cast iron its heat retention and distribution qualities. The result is a kadhai you can comfortably handle for tossing, lifting, and carrying — making cast iron cooking accessible for daily use rather than a special-occasion endeavour.
Cast iron's defining cooking advantage is its exceptional heat retention and even heat distribution — once hot, it stays hot and maintains a consistent temperature across the entire cooking surface. This is what makes it ideal for deep frying (maintaining oil temperature without spikes), for curries and gravies that benefit from long, even heat, and for searing where high, consistent contact heat is essential. The Ironman Kadhai delivers all of these qualities in its nitrided iron construction.
The IMK25G is naturally non-stick by the character of its nitrided iron surface — with no synthetic PTFE, PFOA, ceramic, or any other artificial non-stick coating applied. Food releases naturally with appropriate oil use, and the non-stick property builds and improves over time with use rather than degrading like a chemical coating would. This means your food is cooked in a clean, chemically inert environment — no coating flaking, no heat-degradation of synthetic surfaces.
The nitrided iron surface is non-reactive with acidic and alkaline food ingredients — tamarind, tomatoes, citrus, yoghurt-based marinades — so your food retains its natural flavour without any metallic undertone or unwanted interaction with the cookware material. Curries, gravies, and marinades cooked in the Ironman Kadhai taste as the recipe intends them to taste.
Unlike traditional cast iron pieces that may only work on gas or open flame, the Futura Ironman IMK25G is compatible with both induction cooktops and gas stoves — as well as other stovetop types. This makes it a genuinely versatile piece of cookware for modern Indian kitchens where cooktop types may vary or change over time.
The hardened nitrided iron surface of the Ironman Kadhai is fully compatible with metal ladles, spatulas, and serving spoons. You do not need to worry about scratching, flaking, or damaging the cooking surface with metal utensils — a significant practical advantage over non-stick coated cookware where metal utensils can degrade the coating over time.
The included heat-proof glass lid with a food-grade silicone rim allows you to cook covered — retaining steam, moisture, and flavour inside the kadhai — while maintaining visibility of your food through the glass. The silicone rim creates a secure seal on the kadhai rim and can be easily removed if needed. Covered cooking in a cast iron kadhai accelerates cooking times and concentrates flavours significantly.
The IMK25G's depth, heat retention, and even heat distribution make it particularly well-suited for deep frying, curries, gravies, bhuna-style dishes, searing meat, and making snacks. The 2.5-litre capacity is right for cooking complete dishes for 3 to 4 persons, and the 26 cm diameter provides a wide enough cooking surface for most everyday Indian preparations without cramping ingredients.
| Brand | Futura by Hawkins |
| Model | Ironman Slim Cast Iron Kadhai |
| Model Number | IMK25G |
| Capacity | 2.5 Litres |
| Diameter | 26 cm |
| Material | Nitrided Iron (Hardened Cast Iron) |
| Colour | Black |
| Design | Slim / Lightweight Cast Iron |
| Surface Type | Naturally Non-Stick – No Coating |
| Non-Reactive | Yes |
| Pre-Seasoned | No (Nitrided surface — does not require traditional seasoning) |
| Compatible Cooktops | Gas, Induction |
| Metal Ladle Compatible | Yes |
| Lid Included | Yes – Heat-Proof Glass Lid with Food-Grade Silicone Rim |
| Ideal For | Deep Frying, Curries, Gravies, Searing, Snacks |
| Country of Origin | India |
| Manufactured By | Hawkins Cookers Limited, Mumbai |
| In the Box | 1 Cast Iron Kadhai (IMK25G), 1 Glass Lid |
Wash the Ironman Kadhai with mild soap and water before first use and dry thoroughly. Due to the nitrided surface, this kadhai requires significantly less maintenance than traditional pre-seasoned cast iron. Dry completely after washing to prevent any surface moisture from sitting. Store in a dry place. Avoid soaking in water for extended periods. For the nitrided surface, a light wipe with cooking oil after washing is recommended to maintain the surface in optimal condition.
The Futura Ironman Slim Cast Iron Kadhai (IMK25G) is backed by a 5-year guarantee from Hawkins Cookers Limited from the date of purchase.
The Ironman (IMK25G) uses nitrided iron — a technologically processed surface that is harder, less porous, and more corrosion-resistant than traditional cast iron. It is also a slim, lightweight design for easier handling, and is explicitly induction + gas compatible. The CIK35G uses traditional cast iron with a pre-seasoned vegetable oil surface — it is heavier, naturally nonstick through seasoning, and has an extra-thick 5mm base. The Ironman is the more modern, low-maintenance option; the CIK35G offers the classic cast iron experience with a larger 3.5L capacity.
Nitriding is an industrial surface-hardening process where nitrogen atoms are diffused into the iron surface under controlled heat and atmosphere. This creates a thin but extremely hard, dense layer on the surface. For cookware, the benefits are: harder surface (more abrasion-resistant), lower porosity (less oil needed, less likely to absorb odours), better corrosion resistance (less rust-prone), and a non-reactive surface that does not interact with acidic foods. It retains all cast iron's heat advantages while being more practical in daily use.
The nitrided surface of the Ironman Kadhai does not require the traditional seasoning process that pre-seasoned cast iron does. However, washing before first use and applying a light coat of cooking oil is recommended. The nitrided surface is ready to cook on far sooner than traditional bare cast iron, and its low-porosity finish means it builds cooking performance naturally over time without needing intensive initial seasoning treatment.
Yes. The Futura Ironman IMK25G is specifically designed to be induction and gas compatible. This is a meaningful distinction from some traditional cast iron pieces that may only work reliably on gas or open flame. The induction compatibility of the Ironman range makes it one of the most versatile cast iron kadhai options available for modern Indian kitchens.
Yes — fully. The hardened nitrided iron surface is designed to withstand metal utensils. Unlike non-stick coated cookware where metal ladles can scratch or flake the coating, the Ironman Kadhai's surface is durable enough for metal ladles, spatulas, and serving spoons without concern. This is one of the most practical advantages of cast iron over coated cookware for heavy Indian cooking.
Cast iron's exceptional heat retention and even distribution allows food to cook at a consistent, stable temperature across the entire surface — which is what creates proper caramelisation, deep browning, and thorough cooking through the full depth of the dish. This is why bhuna-style dishes, deep-fried snacks, and slow-cooked curries taste distinctively better in cast iron — the even heat and high heat tolerance create flavour development that lighter pans cannot replicate.
The IMK25G has a capacity of 2.5 litres with a 26 cm diameter. It is suitable for cooking everyday meals for approximately 3 to 4 persons. The depth and diameter make it practical for a full family portion of curries or gravies, a generous batch of deep-fried snacks, or a complete stir-fry or bhuna preparation in a single cooking session.
The IMK25G carries a 5-year guarantee from Hawkins Cookers Limited from the date of purchase, consistent with the broader Futura cookware range. For service or warranty claims, contact the nearest Hawkins authorised service centre or reach Hawkins at service@hawkinscookers.com or (022) 24 440 807.
Cast iron is generally oven-safe due to its all-metal construction — however, the glass lid should be checked for its oven temperature rating before placing it in an oven. The kadhai body itself can withstand oven temperatures suitable for most cooking applications. It is advisable to confirm specific oven use with the product manual or by contacting Hawkins directly.
The Futura Ironman range from Hawkins includes Slim Cast Iron Kadhais in 2.5L (IMK25G) and 4L (IMK40G), Slim Cast Iron Frying Pans in 22 cm (IMF22G) and 26 cm (IMF26G), and a 4.75L Stir-Fry Wok (IMW475). All Ironman pieces use the same nitrided iron surface technology, are induction and gas compatible, and share the slim, lighter-than-traditional design philosophy.