The modern town of Guwahati was probably sacked and destroyed after the death of Bhaskaravarman when Salastambha usurped the throne .
Guwahati represents the site of old Pragjyotishpura .
The modern town of Guwahati , which represents the site of old Pragjyotishpura , was probably sacked and destroyed after the death of Bhaskaravarman when Salastambha usurped the throne .