"All 22 languages under eighth section of the Constitution should be announced as official languages. Tirukkural should be announced a national book, while Tiruvalluvar's birthday should be announced Indian Languages Day," PMK leader S Ramadoss said in a statement.
Lauding BJP leader and MP Tarun Vijay for praising the ancient language of Tamil, Ramadoss, said, "Tamil should be announced the official language of Madras High Court, besides Tamil should be offered as one of the optional subjects in educational institutions across north India. More funds should be alloted for the research on Tamil," he added.