Tension is brewing at Hero MotoCorp's plant at Gurgaon with workers threatening to go on a strike on Saturday, protesting against alleged management action against some colleagues.

The development comes at a time when a section of workers at the company's plant in Haridwar continue to stay away from work after a tool-down strike last month-end.

"We are protesting against action taken by the management, which has filed unjustified police cases against some of our colleagues. We will go on strike anytime unless our demands are met," Hero MotoCorp Workers Union (HMCWU) President Kanwalpreet Singh said.

When contacted, a company spokesperson said some "misguided elements in the Union body" assaulted supervisors in the shop floor of the plant on Friday after a conciliation meeting.

"These officers who were assaulted have filed reports with police and police is free to investigate the matter," the spokesperson said.