Complex sentence: In the 1960s, the line from Madras Beach to Villupuram was converted to 25 kV AC traction, and the rolling stock was changed to EMUs with motors and electricals from Toshiba or Hitachi.
Split into simpler sentences: In the 1960s, the line from Madras Beach to Villupuram was converted to 25 kV AC traction. The rolling stock was changed to EMUs with motors and electricals from Toshiba or Hitachi.