the KAMOBJA inscription is already avlin our photo section - by Vijay.
A Kamboja King granting a Stone ( Kathciyaga kudutha Kallu- stone) during Kulothunga period - placed in the Edhirambalam - as engraved in Chidambaram temple !!
Kambhoja Kingdom could not be the one in Bengal,as Mahipala is ruling various part of Bengal. The below mentioned grant of Mahipala and the Chola inscriptions at Tanjore(Big temple) point to this line. Kambojas in Bengal have been vanquished by Mahipala already.