Subheading 7321.81 · Section XV
7321.81 Domestic appliances; non-electric, (other than cookers and plate warmers), for gas fuel or for both gas and other fuels, of iron or steel
73 Iron or steel articles
7321 Stoves, ranges, grates, cookers (those with subsidiary boilers for central heating), barbecues, braziers, gas-rings, plate warmers and similar non-electric domestic appliances and parts, of iron or steel
7321.81 Non-electric, (other than cookers and plate warmers), for gas fuel or for both gas and other fuels, of iron or steel
Other subheadings under 7321
7321.11 For gas fuel or for both gas and other fuels, of iron or steel 7321.12 For liquid fuel, of iron or steel 7321.19 For solid fuel and fuels other than gas or liquid, of iron or steel 7321.82 Non-electric, (other than cookers and plate warmers), for liquid fuel, of iron or steel 7321.89 Non-electric, (other than cookers and plate warmers), for solid fuel and fuels other than gas or liquid, of iron or steel 7321.90 Non-electric, parts thereof, of iron or steel
For Indian shipping bills you need 8 digits. These six-digit codes are the international HS 2022. India's ITC(HS) classification (DGFT) and Customs Tariff (CBIC) add two more digits for the national tariff line, so pick the 8-digit line under your 6-digit code there, and confirm with your customs broker for anything borderline.