In the history of elections in Tamil Nadu, it is not unusual for a party—while remaining part of an alliance—to contest a by-election alone against the ruling party or to switch alliances for the contest; this has happened on several occasions.
In the history of elections in Tamil Nadu, it is not unusual for a party—while remaining part of an alliance—to contest a by-election alone against the ruling party or to switch alliances for the contest; this has happened on several occasions.