The company's proposal was first examined by an expert panel last month and based on its recommendations, the environment ministry gave the go-ahead to the expansion project.
The proposal is for enhancement of aluminium melting from 20,000 tonnes per annum (TPA) to 30,000 TPA, propane storage from 50 tonnes to 100 tonnes and power back-up from 4.9 MW to 37.3 MW at the existing premise of Tapukara plant.
Among conditions specified, the company has been asked to develop green belt in 33 per cent area to mitigate the effects of fugitive emissions and ensure plants operate on a zero- discharge concept and treated water be recycled and reused.
The company is seeing a strong sale momentum this year. Its domestic sales rose 21 per cent to 55,647 units during April-July of the ongoing fiscal from 45,880 units in the year-ago period, as per the company's data.
HCIL sells compact car Brio, compact sedan Amaze, mid-sized sedan City, premium hatchback Jazz, premium sports utility vehicle CR-V, among others.