"The Congress government should remove the minister to allow a free and fair probe in the scam," BJP state president Shibun Lyngdoh said.
He said the minister should have stepped down on her own after being named in the CBI findings on the high rise scam.
The Opposition United Democratic Party (UDP) has also demanded her removal for her alleged role in the scam.
"It is your prerogative, to immediately drop her (Lyngdoh) from the cabinet, considering the fact that till date, the minister has not taken any position on this matter," party general secretary A F Dkhar said in a letter to the Chief Minister.