Google TN: Is DMK Gaining at the expense of AIADMK due to COVID?

The Answer is NO!

There are slight positive movements for DMK but the swing is not big. That said, DMK is already ahead by a healthy margin compared to what it was in April 2015. A strong campaign could take it to a comfortable win in 2021.

Further, in April 2015, Jayalalitaa had a healthy lead over both Karunanidhi and Stalin. In April 2020, MK Stalin is  on par with TN CM Palaniswami. So a tough battle awaits AIADMK particularly given the likely economic slowdown ahead.