"For those who are demanding resignation, it has become a disease," Congress General Secretary and head of media department Janardan Dwivedi told reporters.
He said Bansal has himself given a clarification demanding probe in the wake of the arrest of his nephew for allegedly fixing top level promotions in the Railway Board.
"The Railway Minister himself has given a clarification and said that there should be a thorough probe into the matter. I don't think we can expect any thing more from him," Dwivedi said in a brief reaction to the developments surrounding Bansal.
The Minister's nephew V Singla was yesterday arrested by the CBI in connection with alleged bribery of Rs 90 lakh for fixing a top level position in the government.
Bansal, however, has distanced himself from his nephew, saying he had no business links with him and denied any wrongdoing.