Simplify the following text for a Grade 8 native English-speaking person.
Original: Prior to 2001 , there were 106 districts but with the reorganisation , these were reduced to 102 by the merger of the five districts of Karachi Central , Karachi East , Karachi South , Karachi West and Malir to form Karachi District .
Simplified: Before 2001 , there were 106 districts but they were reorganised and reduced to 102 . Five districts of Karachi , Central , Karachi East , Karachi South , Karachi West and Malir were joined to form Karachi District .