The Delhi Patiala House court hearing the 2G spectrum scam case will pronounce its verdict December 21.
The case refers to the sale of mobile spectrum under the former UPA government.
The Comptroller and Auditor General had flagged the sale, saying spectrum was sold at undervalued rates which had caused a loss to the exchequer.
Former telecom minister A Raja is accused in the case.
"I am not a judge, I am a law-abiding citizen, I faced trial and have faith in the judiciary," ANI reported Raja as saying after the announcement.
"Let us see," said Kanimozhi when asked what the verdict might say.
Kanimozhi is accused in a related money-laundering case.