"The remark made by a minister on Sonia Gandhi is highly condemnable. This reflects people's thinking. Such remarks have not been made for the first time.
"Talk which is considered to be wrong and condemnable in society, when such things are said... The matter does not remain confined to the person who has said it, it is a reflection on the entire party and government as to what their thought process is," said Bihar Chief Minister Nitish Kumar.
"This man (Singh) should be treated the same way as JD(U) leader Sharad Yadav was when he made objectionable remarks on the skin colour of women. It (such comments) can only be made by Singh and those who are members of RSS," Prasad said.
Singh again kicked up a row after asking whether Congress would have accepted Sonia Gandhi's leadership had she not been white-skinned.
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"Had Rajiv Gandhi married a Nigerian woman and if she was not a white-skinned woman, would the Congress have then accepted her (Sonia's) leadership?" he told journalists yesterday.
"It is left to the party president. The party president is a man of discipline. Wherever he sees some person going wrong, he will take him into confidence and he will then be advised not to do such things. It is not fair on my part to comment about the statements of my colleague," he said.
Congress has already demanded an apology from Prime Minister Narendra Modi and the immediate dismissal of Singh.
"Congress strongly deprecates and condemns the intemperate and distasteful remarks of Singh, bordering on insanity... Prime Minister must dismiss such a minister and apologise to the nation," said the party's communication department in-charge, Randeep Surjewala.