After annnexure of Sembium - Ayanavaram , Madras municipality became a city .
The Sembium - Ayanavaram Municipal council was annexed to the town of St. George in 1946 .
After annnexure of Ayanavaram     , Madras municipality became a city .
The Sembium - Ayanavaram Municipal council was annexed to the town of St. George in 1946 .