Hundreds of steelworkers will march on Wednesday to highlight the crisis in their industry.
The move comes as a shortlist of bidders is drawn up for the UK assets of Tata Steel.
Tata's board will meet in Mumbai to discuss the prospect of sale, which would save thousands of jobs.
Business Secretary Sajid Javid and Welsh First Minsiter Carwyn Jones have also travelled to the India city for talks.
As negotiations continue, workers from steel plants across the UK will march through central London to keep up the pressure on the company and the government.
TUC General Secretary Frances O'Grady will criticise Chinese steel dumping at today's event.