"The UDP strongly demands immediate dismissal of the tainted minister both on moral and legal grounds as the scam took place during her tenure as education minister," party chief minister Donkupar Roy said in a letter to the chief minister.
Calling the scam as the biggest scandal that hit the present government, Roy said the departmental inquiry set up by the government was an eye-wash and an attempt to bury the scam.
Opposition Nationalist Peoples Party (NPP) also said that the Chief Minister Mukul Sangma would be held responsible if he did not take action against his cabinet colleagues allegedly involved in the scam unearthed by CBI.
"The chief minister should realise the importance of the issue and take action against those involved in manipulation of marks," Leader of the Opposition and NPP leader Conrad K Sangma told reporters.
Criticising Sangma for seeking a report from the chief secretary on how CBI report was leaked to the media, Conrad said the chief minister should "avoid shooting the messenger."
The CBI report named some ministers and legislators whose recommendations were taken into consideration while selecting candidates for the post of assistant teachers in government lower primary schools two years ago.