Auto major Tata Motors [Get Quote] today said it will shut down its Jamshedpur unit, the mother plant for its heavy commercial vehicles, for three days due to a slump in demand.

"Tata Motors is taking a block closure at Jamshedpur from November 6 to November 8, 2008, to match production with the demand for vehicles produced at the Jamshedpur plant to avoid build-up of inventory either in the company or with our dealers," a company spokesperson said.

Lack of auto financing has hit sales of commercial vehicles in the domestic market.

"About 95 per cent of commercial vehicles are purchased through financing. While we do not declare production rates, suffice it to say that, as has been seen in the month of October across the industry, unavailability of finance, coupled with high interest rates, is forcing customers to postpone purchases," he said. "We are keeping a close watch on the market scenario," he added.

Tata Motors' Jamshedpur plant is the hub for manufacturing tippers, tractor trailers and multi-axle vehicles.

In October, the company reported 29 per cent decline in commercial vehicles sales at 19,154 units, against 27,103 units in the same month last year.

Tata Motors' medium and heavy commercial vehicles sales, which are mostly financed took a sever hit with a 48 per cent decline during the month at just 7,321 units while that of light commercial vehicles have also declined by 10 per cent at 11,833 units.

In October, the company had 'disengaged' 700 temporary workers from the Jamshedpur plant. While Tata Motors maintained it was routine disengagement following the completion of their contract, industry analyst had pointed out that the slump in demand is forcing the industry players to various cost cutting measures.