Bagan 's King Alaungsithu raised the height of the stupa to 11 metres ( 36 ft ) in 1115 AD .
The Mon King Samodogossa raised height to 131 feet ( 40 m ) in 1263 AD .
Bagan 's King Alaungsithu raised the height of the stupa to 11 metres ( 36 ft ) in 1115 AD , and the Mon King Samodogossa raised it to 131 feet ( 40 m ) in 1263 AD .