Mumbai, Dec 5: Shivsena leader and Standing committee chairman in bmc Rahul shewale writes letters to BMC Commissioner, all party house leaders, different committees chairpersons and demands that as Balasaheb final cremation process have been done so Change the Name of Shivaji park to "Shiv-Tirth" -as in his all rallys and Dashhara sabha Balasaheb used to called shivaji park as a '' Shiv Tirth''.