Complex sentence: He built the first bungalow in Malabar Hill, during his tenure as the Governor of Bombay, 1819 to 1827, and following him, many prominent people took residence here, soon it became a posh locality, and remains so, to the present date.
Split into simpler sentences: He built the first bungalow in Malabar Hill during this, and following his example, many prominent people took up residence here. It soon became a posh locality, and remains so to the present date.