The total Covid-19 infection in Tamil Nadu has risen to 46,504 with 1843 new cases confirmed today.<br />'' <br />'' A media bulletin issued by the state health department says the new cases included 1415 in Chennai alone.<br />'' <br />'' 1138 people returned back home after recovery and the active caseload remains at 20,678. Meanwhile, 44 others succumbed today to the disease taking the toll to 479.<br />''