biharsharif assistant curator of biharsharif museum shiv kumar mishra in an inspection report submitted to the art and culture department on july 21 said extensive and irreparable damages were caused to the pal period relics due to unmindful and careless desiltation and renovation work recently carried out at dehar pokhar pond an asi protected site close to the ruins of the ancient nalanda university by the officials of the minor water resources department mwrdhe alleged that the mwrd carried out the desiltation work employing heavy machinery at the historical pond without procuring mandatory noobjection certificate from the asi in his report mishra said the pal period 8th10th ce relics were extensively damaged the size of the bricks 30255cm visible at a semidamaged mound of the pond prove that the damaged wall belonged to pal era he said mishra added a number of ancient clay pots and other artefacts were also extensively damaged and some of them were taken away by the local villagers mwrd executive engineer abhishek rai said the main desiltation work of the pond under jal jeevan haryali mission was completed much earlier and only the dressing work was being carried out recently which was immediately stopped after the asis instruction