<page_title> Chennai Mass Rapid Transit System </page_title> <section_title> Construction and opening </section_title> <table> <cell> Phase I <col_header> Phase </col_header> </cell> <cell> Chennai Beach—Thirumayilai <col_header> Route </col_header> </cell> <cell> 19 October 1997 <col_header> Opening Date </col_header> </cell> <cell> ₹ 2,690 million <col_header> Completion Cost </col_header> </cell> </table>
When the first phase between Chennai Beach and Thirumyilai opened in 1997, the project cost ₹ 2,690 million.