<span style="color: #222222;">Vice President Venkaiah Naidu has said, promotion and protection of ancient Indian languages is very important. <br />''<br />''He said they offer a window to our ancient civilization values, knowledge and wisdom. He made the remarks during his visit to the Central Institute of Classical Tamil and the International Institute of Tamil Studies in Chennai yesterday. <br />''<br />''He called for a national movement for promotion of mother tongue.</span><br />