Other four caves are in better condition but nonetheless seepage is taking place in them. Seepage increases during rainy season when water in the river is more.
According to departmental sources, these caves were excavated by Buddhist monks (bhikshus) by cutting stones for their practices.
Buddha statues had also been carved on the stones.
However, seepage and erosion started from roof and walls with passage of time causing decay of caves.
ASI Assistant Conservator Devendra Richharia told UNI here that 41 paintings had been removed from these caves a few years ago and shifted to a museum in the Bagh cave premises to prevent further damage.
He said a statue of Buddha, rapt in meditation, carved outside a cave, is centre of attraction for tourists. However, there was chances of loss to such historical heritage due to excess rainwater in river.
Richharia said a letter had been written to senior officials for protection of these caves requesting construction of cement or concrete wall on the side of river.
He said if adequate attention was not paid, the heritage caves will become extant over period of time.