A meeting of Mizoram Pradesh Congress Committee, held immediately after Lal Thanzara's resignation, expressed shock over the development, a party statement said.
It said the meeting objected to the letter submitted by Lal Thanzara to the Chief Minister and state Assembly Speaker, announcing his resignation as a Minister of State as well as a legislator.
A party delegation met Chief Minister Lal Thanhawla and asked him not to accept the resignation of Lal Thanzara, the statement said.
Thanzara, the younger brother of the Chief Minister, said that he decided to step down as the charges against him, though baseless and false, may cause embarrassment to the government and the party.
He denied the allegations by the Opposition that he received pecuniary benefits from a construction company working under the state government.
Leaders of the party's organisations like Aizawl District Congress Committee, Mizoram Pradesh Youth Congress Committee, Mahila Congress, National Students Union of India and Congress Elders Wing attended the party meeting which deliberated the issue.