Complex sentence: Originally part of the district of Surquillo, it became officially established as a separate district on June 1,1983, the current mayor (alcalde) of San Borja is Alberto Tejada.
Split into simpler sentences: Originally part of the district of Surquillo, it became officially established as a separate district on June 1,1983. The current mayor (alcalde) of San Borja is Alberto Tejada.