When film star-turned-politician C Joseph Vijay's newly-formed political party won the most number of seats in the recent election in the Indian state of Tamil Nadu, it was hailed as historic.

But five days after Monday's vote-counting, political uncertainty prevails in the southern state, with no clarity on when a new government could be formed or who would form it.

Vijay's party Tamilaga Vettri Kazhagam (TVK) won 108 seats - leaving him 10 seats short of a majority in the 234-member assembly.

India's main opposition Congress party, which has five seats, has pledged support. But Vijay has to win support from at least five more members and there is still no clarity on who they would be.

On Wednesday, the superstar called on the state Governor Rajendra Vishwanath Arlekar and staked claim to form the next government. He met the governor again on Thursday.