DMK legislator K. Radhamani died on Friday morning.
The 70-year old lawmaker representing the Vikravandi Assembly constituency was suffering from illness and was receiving treatment at a hospital in Puducherry.
DMK President M.K. Stalin condoled the death of Radhamani.
With Radhamani's death, the DMK's strength in the 234-member Tamil Nadu Assembly comes down to 100.
Apart from Vikravandi, one more Assembly seat - Nanguneri - is vacant in Tamil Nadu.
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