Bihar's silk city.
Bhagalpur in Bihar has been called the "silk city of India" for over two centuries. The local Tussar silk is reeled from the cocoons of the Antheraea mylitta moth — a wild silkworm that feeds on the leaves of sal, asan, and arjun trees native to the forests of eastern India.
The Bhagalpur cluster supports over 30,000 weavers and dyers across some 25,000 looms, mostly concentrated in Nathnagar (Champanagar). The textile received its GI tag in 2013.
The slub and the golden sheen.
Tussar silk has a natural honey-gold undertone — its colour comes from the wild silkworm's diet, not from any dye. The fibre is shorter and less even than mulberry silk, producing the characteristic slub texture and matte sheen.
Bhagalpuri tussar is woven on a throw-shuttle frame loom. The cloth is often dyed in bright single colours (red, blue, pink) or printed with traditional patterns. Its lightweight drape (400–600 grams per saree) makes it a year-round wear, unlike heavier mulberry silks.
How to spot a real one.
- 01 Natural slub Real tussar has uneven, organic-looking slubs in the weave. Power-loom polyester-tussar imitations have perfectly even threads.
- 02 Honey-gold tint Even after dyeing, real tussar retains a warm golden undertone visible against strong light. Synthetic tussar looks coldly uniform.
- 03 Burn test A loose thread should burn slowly with a hair-burning smell and leave brittle black ash. Polyester melts to plastic.
- 04 Matte sheen Tussar is matte, not glossy. A high-shine "tussar" is artificial.
- 05 Bhagalpur silk GI Look for the "Bhagalpur Silk" GI 2013 mark or the Bihar State Khadi Board label.
Living with it.
- Dry-clean only
- Tussar silk doesn't take well to home washing — the slub structure absorbs detergent unevenly.
- Air in shade
- Sunlight darkens the natural honey-gold over time. Air in shade for an hour after each wear.
- No starch
- Tussar has its own natural body. Starching makes it stiff and brittle.
- Store rolled in muslin
- Wrap in cotton mulmul and store rolled to prevent fold-crack at the slub points.