"Everyone is concerned about the progress and the slowness. Clearly, I am also concerned about the slowness and tardiness in some of the approvals," Mittal told a television channel in an interview here.

He was responding to a query on why he is critical of the way the Indian government has managed certain aspects, particularly regulations in the steel sector.

Mittal chairs the world's largest steelmaker ArcelorMittal which has plans to build 2 mega steel plants of 12MTPA in Jharkhand and Orissa and one 6MTPA plant in Karnataka at a total investment of about Rs 1,30,000 crore (USD 30 billion).

However, marred by regulatory delays and problems in land acquisition, the company has put its Orissa plans on hold. In September, 2010, it shifted the plant site in Jharkhand from Khunti-Gumla to Bokaro.

Mittal said that the company was in constant talks with the government to iron out issues.

"I am very pleased with my discussions with the government. At least, they are they are trying to resolve them. We have lots of other issues, so we need to work through this," he said.

Mittal also said India has great potential and its growth story will continue.

"I am not worried about India's future growth. We are on the right trajectory. We are affected by the global growth story and uncertainty in Europe, but this does not dismay us from growing," he said.

On growth potential of the global steel industry, Mittal said he expects the sector to grow by 2-3 per cent this year, owing to the slow growth all over the world, impacted by Europe and other western nations.

When asked about the US's protectionism stance, which is expected to be a burning topic in the World Economic Forum, Mittal said, "Definitely there are issues on protectionism. When there is no level-playing field between the countries then protectionism comes in.