On whether he would support the Congress in its endeavour to bring opposition parties together on one platform to defeat the BJP in the 2019 Lok Sabh polls, Haasan said, "It is to early to decide."
The MNM chief said he had met Rahul Gandhi and other opposition leaders in Bengaluru at the swearing-in of H D Kumaraswamy as Karnataka chief minister.
The actor-turned-politician had yesterday met Congress president Rahul Gandhi at his residence and held similar discussions.
Haasan also met Election Commission officials in connection with the registration of his party Makkal Needhi Maiam.
After the meeting with the poll panel officials, he told reporters that he expected his party, which was launched in February, would get registered soon.
"I came here for a formal meeting. They (EC) asked certain questions. They are not having any major objection," he said.
To a query, 63-year-old Haasan said the EC officials told him that his party's registration would be done soon. He, however, said the officials did not specify any time frame for it.
Asked about the party's symbol, he said there has been no decision on it yet and the issue will be first discussed within the party before approaching the EC.