Chairman Emeritus of Tata Sons Ratan Tata termed Prime Minister Narendra Modi as a 'doer' and said he should be given more time.
Mitra said that Tata group firm TCS was creating additional 20,000 jobs.
West Bengal Pradesh Congress Committee President Adhir Ranjan Chowdhury on Saturday criticised the statements of West Bengal ministers against Ratan Tata, and said Tata's views and opinions about the development of the state would always be welcomed by the people of Bengal.
Chairman Emeritus of Tata Sons Ratan Tata said shifting the Nano car plant from Singur in West Bengal was a prudent move in hindsight but gave the group a high negative cost.
Mr Mitra, show me where is industrial development in Bengal: Tata
Mitra's stout and vociferous protest to what most see as Tata's meandering and even affectionate critique has taken people by surprise.