Possible reasons for -
Black zari border – Use of naphthalene ball turned zari (brocade) black.
Holes – Carpet beetle have attacked on the sari.
Precautions for storage of sar-
(i) Dry clean sari before storing it.
(ii) It should be wrapped in clean white sheets or muslin cloth.
(iii) They should be aired occasionally and refolded in opposite directions.
(iv) Naphthelene balls should never be used.
(v) Keep the saris in dry and insect proof boxes.
(vi) Insert tissue paper between folds to prevent creases.