Work at the Tata Motors Nano factory at Singur in West Bengal's Hoogly district remained suspended for the fourth consecutive working day on Tuesday.
According to a newspaper report in Kolkata, Tata Motors and its vendors are losing about Rs 10 million (Rs.1 crore) every day on account of work suspension.
There was no work at the factory on Friday, Saturday and Monday due to an indefinite agitation at the plant site by the Trinamool Congress, which is demanding the return of 400 acres taken for the project from farmers who did not want their land to be acquired.
The plant was closed on Sunday, it being a weekly holiday.
In another development, the National Highway-2 (NH2), which was partially opened Monday night was again closed on Tuesday morning.
"We have been able to allow 55 trucks to ply towards Kolkata and some others to Bardhaman district till 11 am on Tuesday," said an official of the National Highways Authority of India (NHAI).
He, however, refused to comment on why the highway was closed on Tuesday.
"Senior NHAI officials will have a meeting with the Hoogly district administration on this issue soon," he said.
Tata Motors is slated to roll out the world's cheapest car from its factory in Singur, 40 kilometre from Kolkata, in October.