CBSE Class 7 Answered

During the Chola period, the bronze statues were made in the following way:

 An image was made of wax. It was then covered with clay and allowed to dry.

 It was then heated, and a tiny hole was made in the clay cover through which the molten wax was drained out.

 Molten metal was poured into the clay mould through the hole.

 When the metal cooled and solidified, the clay cover was carefully removed, and the image was cleaned and polished.