Pachuau said the Mizoram government could not fix the date for the swearing-in ceremony for the new Governor as it was still unclear when Sharma would come to Aizawl.
Sharma was transferred from Arunachal Pradesh and appointed as Mizoram Governor on May 12 for the remainder of his term.
Sharma would succeed Keshari Nath Tripathi, Governor of West Bengal, who was appointed to take additional charge of Mizoram and was sworn-in at Aizawl Raj Bhavan on April 4 last.