"We will issue notices to two companies to seek their responses... Returnable within 12 weeks," a bench of justices G S Singhvi and K S Radhakrishnan said, moments after Swamy rose to advance his arguments on his contempt petition.
The bench, however, refused to issue notice to Finance Minister P Chidambaram and his son Karti Chidambaram who allegedly has majority stake in the companies.
Swamy filed contempt plea against the companies, including Advantage Strategic Singapore, which had had filed the defamation suit against the Swamy for allegedly defaming them in judicial proceedings related to 2G spectrum allocation scam case.
He said the companies had intentionally filed suits abroad to harass him and to make him run around the world.