Expelled DMK leader M.K. Alagiri met Union Finance Minister P. Chidambaram at the airport here on Friday, but refused to reveal what they discussed.

“We have been in the government for nine years. We discussed a lot of things (of common interest),” he told reporters after the meeting, without elaborating.

Ever since his suspension and dismissal from the party, Mr. Alagiri has been meeting leaders from parties in the NDA and the Congress.

While Mr. Alagiri returned to Madurai from Chennai, Mr. Chidambaram was in the city en route to Sivaganga to campaign for his son Karti.

Mr. Alagiri had on Thursday called on his half-sister and Rajya Sabha MP Kanimozhi in Chennai, setting off speculation on the purpose of the meeting as their supporters have been sidelined in selection of candidates for the Lok Sabha polls, while Stalin’s loyalists found place in the list of nominees without fail.

The DMK had on Tuesday expelled a defiant Mr. Alagiri, son of party patriarch M Karunanidhi, for refusing to abide by the party discipline.