what is istridhan

No, it is taxable under capital gains.

Reference: Section 2(14)(ii) of the Income Tax Act

(ii)  personal effects, that is to say, movable property (including wearing apparel and furniture) held for personal use by the assessee or any member of his family dependent on him, but excludes—

(a)  jewellery;

(b)  archaeological collections;

(c)  drawings;

(d)  paintings;

(e)  sculptures; or

(f)  any work of art.

Explanation.—For the purposes of this sub-clause, “jewellery” includes—

(a) ornaments made of gold, silver, platinum or any other precious metal or any alloy containing one or more of such precious metals, whether or not containing any precious or semi-precious stone, and whether or not worked or sewn into any wearing apparel;