Liana told PTI that the Congress being the main opponent of his Mizo National Front (MNF), he could not support the Congress-led UPA government at the Centre.
Though the MNF, the main opposition party in Mizoram, had snapped ties with the NDA five years back due to differences on secular issues, it continued to oppose the UPA government in Parliament.
Former chief minister and president of the MNF Zoramthanga had said yesterday that Liana was free to cast his vote according to his conscience.